1.Research and application of a new deep learning based strategy for platelet histogram review
Enming ZHANG ; Chao YANG ; Xianchun CHEN ; Yan LIN ; Taixue AN ; Haixia LI ; Yongjian HE ; Zhiwei LIU ; Limei FENG ; Wanying LIN ; Tie XIONG ; Kai QIU ; Ya GAO ; Lizhu HUANG ; Jing HE ; Chunyan WANG ; Dehua SUN ; Bo SITU ; Lei ZHENG
Chinese Journal of Laboratory Medicine 2025;48(9):1201-1206
Objective:To develop an artificial intelligence (AI)-based platelet review strategy to identify abnormal platelet histograms with no significant difference between initial impedance platelet count (PLT-I) and PLT-F results.Methods:This study included 5 119 routine blood analysis in Nanfang Hospital of Southern Medical University and its Ganzhou branch from July 2023 and March 2024. Specimens exhibiting abnormal platelet histograms and an initial platelet count >40×10?/L underwent review using the fluorescent platelet count (PLT-F) channel. Consistency of the results was defined as a difference between impedance platelet count (PLT-I) and PLT-F less than ±20% of the PLT-F results. A deep learning model was developed using platelet and red blood cell histogram data from a training set of 3 807 specimens. The model′s diagnostic performance was evaluated on an independent external validation set ( n=805) using receiver operating characteristic (ROC) curve analysis. Changes in the number of reviewed samples and sample turnaround time were analyzed to assess its clinical utility. Results:The deep learning model based on platelet and red blood cell histograms achieved an area under the ROC curve (AUC) of 0.854 in the training set. At a cutoff value of 0.1, the sensitivity was 0.954 and specificity was 0.358. The model could reduce review by 16.80% (190/1 131). In the validation set, the AUC was 0.805, with a sensitivity of 0.955 and specificity of 0.307, corresponding to a reduction of 17.41% (47/270) in reviewed specimens.Conclusion:The platelet review prediction model developed based on deep learning technology can efficiently identify samples with consistent results before and after review, reducing unnecessary reviews and shortening specimen testing time, thereby improving the efficiency of platelet test.
2.Changes of related angles in calcaneal fractures treated with cannulated screw internal fixation via a small incision sinus tarsi approach
Journal of Regional Anatomy and Operative Surgery 2025;34(1):49-54
Objective To investigate the effect of cannulated screw internal fixation via a small incision sinus tarsi approach on calcaneal related angles in patients with calcaneal fractures.Methods A total of 107 patients with calcaneal fractures who were treated in our hospital from June 2020 to July 2023 were selected,and they were divided into the group A(n=56,underwent lateral L-shaped approach combined with steel plate internal fixation) and group B (n=51,underwent cannulated screw internal fixation via a small incision sinus tarsi approach). The Bohler angle,Gissane angle,calcaneal width,calcaneal height,American Orthopaedic Foot and Ankle Association (AOFAS) Maryland foot function score,and visual analogue scale (VAS) score before and after surgery were compared between the two groups. The correlations between the imaging data before and after surgery,their correlation with the AOFAS Maryland foot function score and VAS score,and the correlations between the difference in imaging indexes before and after surgery and the improvement rates of Maryland foot function score and VAS score were analyzed by Pearson method. Results The Bohler angle,Gissane angle,calcaneal width,and calcaneal height after surgery in both groups were significantly improved compared with those before surgery (P<0.05). The group B had smaller Bohler angle 1 month after surgery,and greater Bohler angle 3 months and 6 months after surgery,and Gissane angle and calcaneal width 3 months after surgery compared with those in group A (P<0.05). At 1,3,and 6 months after surgery,the VAS scores of both groups were significantly reduced compared with those before surgery (P<0.05),while the Maryland foot function scores were significantly increased compared with those before surgery (P<0.05). The Maryland foot function scores and VAS scores 1,3,and 6 months after surgery of the group B were significantly better than those of the group A(P<0.05). The Bohler angle,calcaneal width,Gissane angle,and calcaneal height were all correlated before and after surgery (P<0.05);before surgery,the calcaneal width and height were not correlated with the Maryland foot function score or VAS score (P>0.05),while the Bohler angle and Gissane angle were correlated with the Maryland foot function score and VAS score (P<0.05);after surgery,the Bohler angle,calcaneal width,Gissane angle,and calcaneal height were all correlated with the Maryland foot function score and VAS score (P<0.05). The differences in Bohler angle,Gissane angle,calcaneal width,and calcaneal height before and after surgery were correlated with the improvement rates of Maryland foot function score and VAS score (P<0.05). Conclusion The Bohler angle,Gissane angle,and calcaneal height all increase,while the calcaneal width decrease after treated with cannulated screw internal fixation via a small incision sinus tarsi approach in calcaneal fractures,which has better therapeutic effect than that of lateral L-shaped approach combined with steel plate internal fixation. The changes in the Bohler angle,Gissane angle,calcaneal width,and calcaneal height are correlated with the clinical efficacy.
3.Aromatic Substances and Their Clinical Application: A Review
Yundan GUO ; Lulu WANG ; Zhili ZHANG ; Chen GUO ; Zhihong PI ; Wei GONG ; Zongping WU ; Dayu WANG ; Tianle GAO ; Cai TIE ; Yuan LIN ; Jiandong JIANG
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(22):264-272
Aromatherapy refers to the method of using the aromatic components of plants in appropriate forms to act on the entire body or a specific area to prevent and treat diseases. Essential oils used in aromatherapy are hydrophobic liquids containing volatile aromatic molecules, such as limonene, linalool, linalool acetate, geraniol, and citronellol. These chemicals have been extensively studied and shown to have a variety of functions, including reducing anxiety, relieving depression, promoting sleep, and providing pain relief. Terpenoids are a class of organic molecules with relatively low lipid solubility. After being inhaled, they can pass through the nasal mucosa for transfer or penetrate the skin and enter the bloodstream upon local application. Some of these substances also have the ability to cross the blood-brain barrier, thereby exerting effects on the central nervous system. Currently, the academic community generally agrees that products such as essential oils and aromatherapy from aromatic plants have certain health benefits. However, the process of extracting a single component from it and successfully developing it into a drug still faces many challenges. Its safety and efficacy still need to be further verified through more rigorous and systematic experiments. This article systematically elaborated on the efficacy of aromatic substances, including plant extracts and natural small molecule compounds, in antibacterial and antiviral fields and the regulation of nervous system activity. As a result, a deeper understanding of aromatherapy was achieved. At the same time, the potential of these aromatic substances for drug development was thoroughly explored, providing important references and insights for possible future drug research and application.
4.Multi-gene molecular identification and pathogenicity analysis of pathogens causing root rot of Atractylodes lancea in Hubei province.
Tie-Lin WANG ; Yang XU ; Xiu-Fu WAN ; Zhao-Geng LYU ; Bin-Bin YAN ; Yong-Xi DU ; Chuan-Zhi KANG ; Lan-Ping GUO
China Journal of Chinese Materia Medica 2025;50(7):1721-1726
To clarify the species, pathogenicity, and distribution of the pathogens causing the root rot of Atractylodes lancea in Hubei province, the tissue separation method was used to isolate the pathogens from root rot samples in the main planting areas of A. lancea in Hubei. Based on the preliminary identification of the Fusarium genus by the internal transcribed spacer(ITS) sequence, three housekeeping genes, EF1/EF2, Btu-F-FO1/Btu-F-RO1, and FF1/FR1, were amplified and sequenced. Subsequently, a phylogenetic tree was constructed based on these TEF gene sequences to classify the pathogens. The pathogenicity of these strains was determined using the root irrigation method. A total of 194 pathogen strains were isolated using the tissue separation method. Molecular identification using the three housekeeping genes identified the pathogens as F. solani, F. oxysporum, F. commune, F. equiseti, F. tricinctum, F. redolens, F. fujikuroi, F. avenaceum, F. acuminatum, and F. incarnatum. Among them, F. solani and F. oxysporum were the dominant strains, widely distributed in multiple regions, with F. solani accounting for approximately 54% of the total isolated strains and F. oxysporum accounting for approximately 34%. Other strains accounted for a relatively small proportion, totaling approximately 12%. The results of pathogenicity determination showed that there were certain differences in pathogenicity among strains. The analysis of the pathogenicity differentiation of the widely distributed F. solani and F. oxysporum strains revealed that these dominant strains in Hubei were mainly highly pathogenic. This study determined the species, pathogenicity, and distribution of the pathogens causing the root rot of A. lancea in Hubei province. The results provide a scientific basis for further understanding the root rot of A. lancea and its epidemic occurrence and scientifically preventing and controlling this disease.
Plant Diseases/microbiology*
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Atractylodes/microbiology*
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Phylogeny
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Plant Roots/microbiology*
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Fusarium/classification*
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China
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Virulence
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Fungal Proteins/genetics*
5.Biological characteristics of pathogen causing damping off on Aconitum kusnezoffiii and inhibitory effect of effective fungicides.
Si-Yi GUO ; Si-Yao ZHOU ; Tie-Lin WANG ; Ji-Peng CHEN ; Zi-Bo LI ; Ru-Jun ZHOU
China Journal of Chinese Materia Medica 2025;50(7):1727-1734
Aconitum kusnezoffii is a perennial herbaceous medicinal plant of the family Ranunculaceae, with unique medicinal value. Damping off is one of the most important seedling diseases affecting A. kusnezoffii, occurring widely and often causing large-scale seedling death in the field. To clarify the species of the pathogen causing damping off in A. kusnezoffii and to formulate an effective control strategy, this study conducted pathogen identification, research on biological characteristics, and evaluation of fungicide inhibitory activity. Through morphological characteristics, cultural traits, and phylogenetic tree analysis, the pathogen causing damping off in A. kusnezoffii was identified as Rhizoctonia solani, belonging to the AG5 anastomosis group. The optimal temperature for mycelial growth of the pathogen was 25-30 ℃, with OA medium as the most suitable medium, pH 8 as the optimal pH, and sucrose and yeast as the best carbon and nitrogen sources, respectively. The effect of light on mycelial growth was not significant. In evaluating the inhibitory activity of 45 chemical fungicides, including 30% hymexazol, and 4 biogenic fungicides, including 0.3% eugenol, it was found that 30% thifluzamide and 50% fludioxonil had significantly better inhibitory effects on R. solani than other tested agents, with EC_(50) values of 0.129 6,0.220 6 μg·mL~(-1), respectively. Among the biogenic fungicides, 0.3% eugenol also showed an ideal inhibitory effect on the pathogen, with an EC_(50) of 1.668 9 μg·mL~(-1). To prevent the development of resistance in the pathogen and to reduce the use of chemical fungicides, it is recommended that the three fungicides above be used in rotation during production. These findings provide a theoretical basis for the accurate diagnosis and effective control strategy for R. solani causing damping off in A. kusnezoffii.
Fungicides, Industrial/pharmacology*
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Plant Diseases/microbiology*
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Rhizoctonia/growth & development*
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Aconitum/microbiology*
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Phylogeny
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Mycelium/growth & development*
6.Establishment and application of a rapid high-throughput detection method for Huanglongbing.
Qin YUAN ; Zhi-Peng LI ; Tie-Lin WANG ; Ting DONG ; Yu-Wen YANG ; Wei GUAN ; Ting-Chang ZHAO
China Journal of Chinese Materia Medica 2025;50(7):1735-1740
The dried mature peel of Citrus reticulata, a plant in the Rutaceae family and its cultivated varieties, is a commonly used Chinese medicinal material known as Chenpi(Citri Reticulatae Pericarpium). It is rich in nutritional components and medicinal value, with pharmacological effects including relieving cough and eliminating phlegm, strengthening the spleen and drying dampness, protecting the liver and benefiting the stomach, tonifying Qi, and calming the mind. Huanglongbing(HLB), also known as Citrus Huanglongbing, is a destructive disease in citrus production that seriously threatens the development of the citrus industry. HLB causes symptoms such as the inability of Rutaceae plants to produce mature fruit, gradual weakening of the tree, and eventual death, posing a significant threat to the yield and quality of Chenpi. Due to the uneven distribution of the HLB pathogen in infected plants, accurate detection of the pathogen requires the collection of a large number of plant samples. Current sample pretreatment methods, such as traditional extraction methods and commercial extraction kits, are time-consuming and involve multiple steps, which significantly increase the difficulty and workload of HLB diagnosis and have become a bottleneck in HLB detection. In this study, a rapid high-throughput detection method combining alkali lysis and TaqMan qPCR was developed. This method allows the pretreatment of multiple samples within 5 min, and the entire detection process can be completed within 45 min, with a detection limit of 6.67 fg·μL~(-1). The alkali lysis method and commercial kits were used for parallel detection of field-collected citrus samples, and the results showed no significant difference. The sample pretreatment method established in this study is characterized by low cost, simplicity, and high efficiency. Combined with TaqMan qPCR, it can provide technical support for early and on-site diagnosis of HLB. This method is of great significance for disease prevention and control in the citrus industry and is expected to help improve the yield and quality of citrus medicinal materials.
Citrus/microbiology*
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Plant Diseases/microbiology*
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Rhizobiaceae/physiology*
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High-Throughput Screening Assays/methods*
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Liberibacter/physiology*
7.Detection and sequence analysis of broad bean wilt virus 2 on Rehmannia glutinosa.
Xiao-Long DENG ; Jie YAO ; Lang QIN ; Shi-Wen DING ; Tie-Lin WANG ; Kun ZHANG ; Lei CHENG ; Zhen HE
China Journal of Chinese Materia Medica 2025;50(7):1741-1747
To clarify the occurrence and distribution of broad bean wilt virus 2(BBWV2) on Rehmannia glutinosa, this study collected 87 R. glutinosa samples with typical symptoms of viral disease such as chlorosis and crumple from Wenxian county and Wuzhi county in Jiaozuo city, Henan province and Qiaocheng district in Bozhou city, Anhui province. The BBWV2 CP target band was amplified from 37 R. glutinosa samples by RT-PCR technology. The total detection rate reached 42.5%, among which 43.0% was detected in samples from Henan province. The detection rate in samples from Anhui province was 37.5%. 37 BBWV2 CP sequences were obtained by cloning and sequencing of BBWV2 positive samples(data has been submitted to GenBank, accession numbers: PP407959-PP407995), and the sequence analysis of these CP sequences with 91 other BBWV2 isolates in GenBank showed a high genetic diversity with a consistency rate of 70.8%-100%. Meanwhile, phylogenetic analysis showed that BBWV2 could be divided into three groups according to CP sequences, among which the BBWV2 in R. glutinosa isolates obtained in this study were all located in group 3. This study identified the differences in the occurrence, distribution, and genetic diversity of BBWV2 in R. glutinosa from Henan province and Anhui province and provided a theoretical basis for the prevention and control of BBWV2.
Rehmannia/virology*
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Phylogeny
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Plant Diseases/virology*
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China
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Molecular Sequence Data
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Fabavirus/classification*
8.Effect of medicinal parts and harvest seasons on nature-flavor correlation of plant-based Chinese materia medica.
Qi-Ao MA ; Guang YANG ; Hong-Chao WANG ; Ying LI ; Meng CHENG ; Tie-Lin WANG ; Kai SUN ; Xiu-Lian CHI
China Journal of Chinese Materia Medica 2025;50(15):4228-4237
This study selected 6 529 plant-based Chinese materia medica(PCMM) from Chinese Materia Medica as research subjects and applied a random permutation test to explore the overall correlation characteristics between nature and flavor, as well as the correlation characteristics after distinguishing different medicinal parts and harvest seasons. The results showed that the overall correlation characteristics between nature and flavor in PCMM were significantly associated in the following pairs: cold and bitter, cool and bitter, cool and astringent, cool and light, neutral and sweet, neutral and astringent, neutral and light, neutral and sour, hot and pungent, and warm and pungent. When analyzing the data by distinguishing medicinal parts and/or harvest seasons, new correlation patterns emerged, characterized by the disappearance of some significant correlations and the emergence of new ones. When analyzing by medicinal parts alone, significant correlations were found in the following cases: cold and light in leaves, cold and salty in barks, cool and sweet in fruits and seeds, neutral and pungent in whole herbs, neutral and salty in stems, and warm and salty in flowers. However, no significant correlations were found between cool and bitter in stems and other types of herbs, cool and astringent in fruits, seeds, flowers, and other types of herbs, cool and light in leaves, fruits, seeds, barks, flowers and other types of herbs, neutral and sweet in barks, neutral and astringent in whole herbs and stems, neutral and light in leaves, fruits, seeds, and flowers, neutral and sour in whole herbs, stems, barks, flowers, and other types of herbs, and hot and pungent in whole herbs, stems, flowers, and other types of herbs. When analyzing by harvest season alone, significant correlations were found in the following cases: cold and salty, and cool and sour in herbs harvested in winter, and neutral and salty in herbs harvested year-round. However, no significant correlation was found between cool and light in herbs harvested in winter. When considering both medicinal parts and harvest seasons, compared to the independent influence of medicinal parts, 14 new significant correlations emerged(e.g., the correlation between cool and bitter in stems harvested in spring), while 53 previously significant correlations disappeared(e.g., the correlation between cool and bitter in barks harvested in summer). Compared to the independent influence of harvest seasons, 11 new significant correlations appeared(e.g., the correlation between cold and light in barks harvested in autumn), while 50 previously significant correlations disappeared(e.g., the correlation between hot and pungent in leaves harvested in winter). This study is the first to reveal the influence of medicinal parts and harvest seasons on the correlation between nature and flavor in PCMM, which highlights that these two factors can interact and jointly affect nature-flavor correlations. Further research is needed to explore the underlying mechanisms. This study provides a deeper understanding of the inherent scientific connotations of herbal properties and offers a theoretical foundation for the cultivation and harvesting of PCMM.
Seasons
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Plants, Medicinal/growth & development*
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Drugs, Chinese Herbal/chemistry*
;
Taste
9.Changes of related angles in calcaneal fractures treated with cannulated screw internal fixation via a small incision sinus tarsi approach
Journal of Regional Anatomy and Operative Surgery 2025;34(1):49-54
Objective To investigate the effect of cannulated screw internal fixation via a small incision sinus tarsi approach on calcaneal related angles in patients with calcaneal fractures.Methods A total of 107 patients with calcaneal fractures who were treated in our hospital from June 2020 to July 2023 were selected,and they were divided into the group A(n=56,underwent lateral L-shaped approach combined with steel plate internal fixation) and group B (n=51,underwent cannulated screw internal fixation via a small incision sinus tarsi approach). The Bohler angle,Gissane angle,calcaneal width,calcaneal height,American Orthopaedic Foot and Ankle Association (AOFAS) Maryland foot function score,and visual analogue scale (VAS) score before and after surgery were compared between the two groups. The correlations between the imaging data before and after surgery,their correlation with the AOFAS Maryland foot function score and VAS score,and the correlations between the difference in imaging indexes before and after surgery and the improvement rates of Maryland foot function score and VAS score were analyzed by Pearson method. Results The Bohler angle,Gissane angle,calcaneal width,and calcaneal height after surgery in both groups were significantly improved compared with those before surgery (P<0.05). The group B had smaller Bohler angle 1 month after surgery,and greater Bohler angle 3 months and 6 months after surgery,and Gissane angle and calcaneal width 3 months after surgery compared with those in group A (P<0.05). At 1,3,and 6 months after surgery,the VAS scores of both groups were significantly reduced compared with those before surgery (P<0.05),while the Maryland foot function scores were significantly increased compared with those before surgery (P<0.05). The Maryland foot function scores and VAS scores 1,3,and 6 months after surgery of the group B were significantly better than those of the group A(P<0.05). The Bohler angle,calcaneal width,Gissane angle,and calcaneal height were all correlated before and after surgery (P<0.05);before surgery,the calcaneal width and height were not correlated with the Maryland foot function score or VAS score (P>0.05),while the Bohler angle and Gissane angle were correlated with the Maryland foot function score and VAS score (P<0.05);after surgery,the Bohler angle,calcaneal width,Gissane angle,and calcaneal height were all correlated with the Maryland foot function score and VAS score (P<0.05). The differences in Bohler angle,Gissane angle,calcaneal width,and calcaneal height before and after surgery were correlated with the improvement rates of Maryland foot function score and VAS score (P<0.05). Conclusion The Bohler angle,Gissane angle,and calcaneal height all increase,while the calcaneal width decrease after treated with cannulated screw internal fixation via a small incision sinus tarsi approach in calcaneal fractures,which has better therapeutic effect than that of lateral L-shaped approach combined with steel plate internal fixation. The changes in the Bohler angle,Gissane angle,calcaneal width,and calcaneal height are correlated with the clinical efficacy.
10.Research and application of a new deep learning based strategy for platelet histogram review
Enming ZHANG ; Chao YANG ; Xianchun CHEN ; Yan LIN ; Taixue AN ; Haixia LI ; Yongjian HE ; Zhiwei LIU ; Limei FENG ; Wanying LIN ; Tie XIONG ; Kai QIU ; Ya GAO ; Lizhu HUANG ; Jing HE ; Chunyan WANG ; Dehua SUN ; Bo SITU ; Lei ZHENG
Chinese Journal of Laboratory Medicine 2025;48(9):1201-1206
Objective:To develop an artificial intelligence (AI)-based platelet review strategy to identify abnormal platelet histograms with no significant difference between initial impedance platelet count (PLT-I) and PLT-F results.Methods:This study included 5 119 routine blood analysis in Nanfang Hospital of Southern Medical University and its Ganzhou branch from July 2023 and March 2024. Specimens exhibiting abnormal platelet histograms and an initial platelet count >40×10?/L underwent review using the fluorescent platelet count (PLT-F) channel. Consistency of the results was defined as a difference between impedance platelet count (PLT-I) and PLT-F less than ±20% of the PLT-F results. A deep learning model was developed using platelet and red blood cell histogram data from a training set of 3 807 specimens. The model′s diagnostic performance was evaluated on an independent external validation set ( n=805) using receiver operating characteristic (ROC) curve analysis. Changes in the number of reviewed samples and sample turnaround time were analyzed to assess its clinical utility. Results:The deep learning model based on platelet and red blood cell histograms achieved an area under the ROC curve (AUC) of 0.854 in the training set. At a cutoff value of 0.1, the sensitivity was 0.954 and specificity was 0.358. The model could reduce review by 16.80% (190/1 131). In the validation set, the AUC was 0.805, with a sensitivity of 0.955 and specificity of 0.307, corresponding to a reduction of 17.41% (47/270) in reviewed specimens.Conclusion:The platelet review prediction model developed based on deep learning technology can efficiently identify samples with consistent results before and after review, reducing unnecessary reviews and shortening specimen testing time, thereby improving the efficiency of platelet test.

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