1.Assessment of the clinical value with the application of serum abnormal prothrombin for auxiliary diagnosis of hepatocellular carcinoma: a multicenter Chinese population-based case-control study
Xieer LIANG ; Liming CHENG ; Songxiao XU ; Jun ZHANG ; Hongsong CHEN ; Cunying PU ; Rong FAN ; Jinlin HOU
Chinese Journal of Hepatology 2024;32(7):650-656
Objective:To comprehensively evaluate the clinical value of Elecsys serum abnormal prothrombin (PIVKA-Ⅱ) test reagent for auxiliary diagnosis of hepatocellular carcinoma (HCC) in the Chinese population.Methods:A multicenter case-control design was used in the study. Samples from patients with first-time confirmed, diagnosed, and untreated HCC, benign liver disease and interfering controls were collected continuously. Elecsys PIVKA-II and alpha-fetoprotein (AFP) were tested for analysis. Various clinical details of the subjects were collected and analyzed. The efficacy of PIVKA-II (21.29 ng/ml) and AFP (400 ng/ml) for HCC diagnosis was calculated at specific positive cut-off values. Statistical analysis was performed using the Kruskal-Wallis test or receiver operating characteristic curve.Results:A total of 448 subjects were eventually enrolled from five centers, including 185 HCC cases. PIVKA-II had a higher diagnostic sensitivity and accuracy than AFP (84.86% vs. 30.81% and 89.01% vs. 63.66%) when the benign liver disease group was used as the control group, while the specificity was slightly lower. A sensitive analysis showed that PIVKA-II had a sensitivity of >80% at this specific positive cut-off value in the subgroup of AFP-negative subjects, patients with different etiologies, and HCC patients with multiple Barcelona Clinic liver cancer stages (including early-stage HCC). At the same time, the PIVKA-II subject had a slightly higher area under the receiver operating characteristic curve than the AFP (0.920 0 vs. 0.880 9).Conclusion:The clinical efficacy of Elecsys PIVKA-Ⅱ is good and stable in the Chinese population. Additionally, it has the clinical potential to improve the current missed diagnosis status of AFP-negative HCC and HCC monitoring at an early stage, as well as the effectiveness of accuracy promotion for HCC auxiliary diagnosis in China.
2.Chinese expert consensus on the diagnosis and treatment of traumatic supraorbital fissure syndrome (version 2024)
Junyu WANG ; Hai JIN ; Danfeng ZHANG ; Rutong YU ; Mingkun YU ; Yijie MA ; Yue MA ; Ning WANG ; Chunhong WANG ; Chunhui WANG ; Qing WANG ; Xinyu WANG ; Xinjun WANG ; Hengli TIAN ; Xinhua TIAN ; Yijun BAO ; Hua FENG ; Wa DA ; Liquan LYU ; Haijun REN ; Jinfang LIU ; Guodong LIU ; Chunhui LIU ; Junwen GUAN ; Rongcai JIANG ; Yiming LI ; Lihong LI ; Zhenxing LI ; Jinglian LI ; Jun YANG ; Chaohua YANG ; Xiao BU ; Xuehai WU ; Li BIE ; Binghui QIU ; Yongming ZHANG ; Qingjiu ZHANG ; Bo ZHANG ; Xiangtong ZHANG ; Rongbin CHEN ; Chao LIN ; Hu JIN ; Weiming ZHENG ; Mingliang ZHAO ; Liang ZHAO ; Rong HU ; Jixin DUAN ; Jiemin YAO ; Hechun XIA ; Ye GU ; Tao QIAN ; Suokai QIAN ; Tao XU ; Guoyi GAO ; Xiaoping TANG ; Qibing HUANG ; Rong FU ; Jun KANG ; Guobiao LIANG ; Kaiwei HAN ; Zhenmin HAN ; Shuo HAN ; Jun PU ; Lijun HENG ; Junji WEI ; Lijun HOU
Chinese Journal of Trauma 2024;40(5):385-396
Traumatic supraorbital fissure syndrome (TSOFS) is a symptom complex caused by nerve entrapment in the supraorbital fissure after skull base trauma. If the compressed cranial nerve in the supraorbital fissure is not decompressed surgically, ptosis, diplopia and eye movement disorder may exist for a long time and seriously affect the patients′ quality of life. Since its overall incidence is not high, it is not familiarized with the majority of neurosurgeons and some TSOFS may be complicated with skull base vascular injury. If the supraorbital fissure surgery is performed without treatment of vascular injury, it may cause massive hemorrhage, and disability and even life-threatening in severe cases. At present, there is no consensus or guideline on the diagnosis and treatment of TSOFS that can be referred to both domestically and internationally. To improve the understanding of TSOFS among clinical physicians and establish standardized diagnosis and treatment plans, the Skull Base Trauma Group of the Neurorepair Professional Committee of the Chinese Medical Doctor Association, Neurotrauma Group of the Neurosurgery Branch of the Chinese Medical Association, Neurotrauma Group of the Traumatology Branch of the Chinese Medical Association, and Editorial Committee of Chinese Journal of Trauma organized relevant experts to formulate Chinese expert consensus on the diagnosis and treatment of traumatic supraorbital fissure syndrome ( version 2024) based on evidence of evidence-based medicine and clinical experience of diagnosis and treatment. This consensus puts forward 12 recommendations on the diagnosis, classification, treatment, efficacy evaluation and follow-up of TSOFS, aiming to provide references for neurosurgeons from hospitals of all levels to standardize the diagnosis and treatment of TSOFS.
3.Efficacy and safety of neoadjuvant chemotherapy combined with PD-1 antibody for esophageal squamous cell carcinoma in the real world.
Pu Yuan WU ; Tao WANG ; Bao Jun CHEN ; Min Ke SHI ; Bin HUANG ; Nan Die WU ; Liang QI ; Xiao Feng CHANG ; Li Feng WANG ; Bao Rui LIU ; Wei REN
Chinese Journal of Oncology 2023;45(2):170-174
Objective: To evaluate the efficacy and safety of neoadjuvant chemotherapy combined with programmed death-1 (PD-1) antibody in operable, borderline or potentially resectable locally advanced esophageal squamous cell carcinoma(ESCC) in the real world. Methods: The study retrospectively analyzed 28 patients with operable or potentially resectable locally advanced ESCC patients treated with preoperative chemotherapy combined with PD-1 inhibitor in Nanjing Drum Tower Hospital, Affiliated Hospital of Nanjing University Medical School from April 2020 to March 2021. According to the clinical TNM staging system of the 8th edition of the American Joint Committee on Cancer, there were 1, 15, 10, 1 and 1 case of stage Ⅱ, Ⅲ, ⅣA, ⅣB and unknown stage respectively. The treatment was two cycle of dual drug chemotherapy regimen including taxane plus platinum or fluorouracil combined with PD-1 antibody followed by tumor response assessment and surgery if the patient was eligible for resection. Results: Of the 28 patients, 1, 2, 3 and 4 cycles of chemotherapy combined with PD-1 antibody treatment completed in 1, 21, 5, and 1 patient, respectively. Objective response rate (ORR) was 71.4% (20/28), and disease control rate (DCR) was 100% (28/28). The incidence of adverse events exceeding grade 3 levels was 21.4% (6/28), including 3 neutropenia, 1 leukopenia, 1 thrombocytopenia and 1 immune hepatitis. There was no treatment-related death. Of the 23 patients underwent surgery, R0 resection rate was 87.0% (20/23), 13 patients had down staged to the T1-2N0M0 I stage, the pCR rate was 17.3% (4/23), and the pCR rate of primary tumor was 21.7% (5/23). Four patients received definitive chemoradiotherapy. One patient rejected surgery and other treatment after achieved PR response. Conclusion: Neoadjuvant chemotherapy combined PD-1 inhibitor is safe and has high efficacy in operable, borderline or potentially resectable locally advanced ESCC, and it is a promising regimen.
Humans
;
Antibodies/therapeutic use*
;
Antineoplastic Combined Chemotherapy Protocols
;
Carcinoma, Squamous Cell/surgery*
;
Cisplatin
;
Esophageal Neoplasms/surgery*
;
Esophageal Squamous Cell Carcinoma/drug therapy*
;
Immune Checkpoint Inhibitors/therapeutic use*
;
Neoadjuvant Therapy
;
Programmed Cell Death 1 Receptor/therapeutic use*
;
Retrospective Studies
;
Treatment Outcome
4.Clinical observation of Jipei dilong ointment combined with diacerein in the treatment of knee osteoarthritis in the early and mid-term stage
Qiang ZHANG ; Yifa CAO ; Jianshan HU ; Pu LI ; Jing HU ; Yaoyu LU ; Jun SU ; Zicong LIANG ; Zhu YANG
China Pharmacy 2023;34(9):1099-1103
OBJECTIVE To investigate clinical efficacy and safety of Jipei dilong ointment combined with diacerein in the treatment of knee osteoarthritis (KOA) in the early and mid-term stage. METHODS Totally 100 KOA patients were randomly divided into control group and trial group, with 50 cases in each group. Control group received Diacerein capsules orally, 50 mg every time, bid. Trial group additionally received Jipei dilong ointment, once a day, on the basis of control group. Both groups had a treatment course of 4 weeks, and were followed up for 3 months after treatment. The clinical efficacy of 2 groups, visual analogue scale (VAS), Western Ontario and McMaster University osteoarthritis index (WOMAC) score, Lysholm scores before and after treatment, at 3-month follow-up after treatment were all observed; the levels of tumor necrosis factor-α (TNF-α), interleukin 1β (IL-1β), IL-6, superoxide dismutase (SOD), malondialdehyde (MDA), nitric oxide (NO), cartilage oligomeric matrix protein (COMP), matrix metalloproteinase-13 (MMP-13) and C-telopeptide of type Ⅱ collagen (CTX-Ⅱ) were detected in knee joint fluid. The incidence of adverse drug reactions was recorded. RESULTS After 4 weeks of treatment, total effective rate was 96.0% in trial group and 90.0% in control group, without statistical significance between 2 groups (P>0.05). At 3- 2019YFC1712500) month follow-up after treatment, total effective rate of trial group was 94.0%, and was higher than 62.0% of control group(P<0.05). After 4 weeks of treatment and at 3-month follow-up after treatment, VAS score, WOMAC score,the contents ofTNF-α, IL-1β, IL-6, MDA, NO, COMP, MMP-13 and CTX-Ⅱ in knee joint fluid of two groups were significantly lower than before; Lysholm score and SOD activity of knee joint fluid were significantly higher than before, and the trial group was significantly better than the control group during the same period (P<0.05). And there was no statistical significance in the incidence of adverse drug reactions between two groups(P>0.05). CONCLUSION For the treatment of KOA in early and mid- term stage, Jipei dilong ointment combined with diacerein relieve pain, improve knee function by inhibiting inflammatory reaction, reducing oxidative stress and inhibiting chondrocyte and matrix degradation, and have low incidence of adverse drug reactions.
5.Acetylation of Rehmannia glutinosa polysaccharides and antioxidant activity of acetylated derivatives.
Jin LI ; Ting-Ting ZHANG ; Ding-Tao PU ; Ya-Jun SHI ; Zhen-Yu ZUO ; Chong-Ying LIU ; Yan CHEN ; Xiao-Bin JIA ; Peng ZHAO ; Liang FENG
China Journal of Chinese Materia Medica 2022;47(6):1539-1545
This study aims to acetylate Rehmannia glutinosa polysaccharides by acetic anhydride method, optimize process parameters and evaluate their antioxidant activity. With the degree of substitution(D_s) as a criterion, the effects of reaction time, acetic anhydride-to-polysaccharides ratio and temperature were investigated. Process parameters were optimized by single-factor experiment and response surface methodology. The infrared spectroscopy(IR) and scanning electron microscopy(SEM) proved the successful acetylation and were employed to preliminarily analyze the structural characteristics of acetylated derivatives. The results showed that the D_s was 0.327 under the optimal technological conditions, including m(acetic anhydride):m(R. glutinosa polysaccharides)=2.70, reaction time 3.0 h and temperature 48 ℃. Further, the antioxidant properties of acetylated derivatives were investigated in vitro and acetylation was found effective to improve the antioxidant activity of R. glutinosa polysaccharides. This study provides a reference for the further development and application of R. glutinosa polysaccharides.
Acetylation
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Antioxidants/pharmacology*
;
Polysaccharides/pharmacology*
;
Rehmannia/chemistry*
6.Safety and feasibility of stereotactic radiation therapy on porcine ventricular septum: a preliminary study.
Zhao Wei ZHU ; Xu Ping LI ; Ya Wen GAO ; Yi Chao XIAO ; Fang MA ; Chun Hong HU ; Xian Ling LIU ; Jun LIU ; Mu ZENG ; Liang TANG ; Yi Yuan HUANG ; Pu ZOU ; Zhen Jiang LIU ; Sheng Hua ZHOU
Chinese Journal of Cardiology 2022;50(9):907-912
Objective: To explore the safety and feasibility of stereotactic radiation therapy (SBRT) strategy for irradiating porcine ventricular septum, see if can provide a preliminary experimental evidence for clinical SBRT in patients with hypertrophic obstructive cardiomyopathy (HOCM). Methods: Five male pigs (39-49 kg, 6 months old) were used in this study. Pigs were irradiated at doses of 25 Gy (n=2) or 40 Gy (n=3). Delineation of the target volume was achieved under the guidance of 3-dimensional CT image reconstruction, and SBRT was then performed on defined target volume of porcine ventricular septum. Blood biomarkers, electrocardiogram and echocardiography parameters were monitored before and after SBRT. Pathological examination (HE staining, Masson staining) was performed on the target and non-target myocardium at 6 months post SBRT. Results: SBRT was successful and all animals survived to the designed study endpoint (6 months) after SBRT. Serum cardiac troponin T (cTnT) level was significantly higher than the baseline level at 1 day post SBRT, and reduced at 1 week after SBRT, but was still higher than the baseline level(P<0.05). Serum N-terminal pro-B type natriuretic peptide (NT-proBNP) was also significantly increased at 1 day post SBRT (P<0.05) and returned to baseline level at 1 week post SBRT. The serum NT-proBNP level was (249±78), (594±37) and (234±46) pg/ml, respectively, and the cTnT was (14±7), (240±40) and (46±34) pg/ml, respectively at baseline, 1 day and 1 week after SBRT in the 40 Gy dose group. The serum NT-proBNP level was (184±20), (451±49) and (209±36) pg/ml, respectively, the cTnT values were (9±1), (176±29) and (89±27) pg/ml, respectively at baseline, 1 day and 1 week after SBRT in the 25 Gy dose group. Both NT-proBNP and cTnT values tended to be higher post SBRT in the 40 Gy dose group as compared with the 25 Gy dose group, but the difference was not statistically significant (P>0.05). The left ventricular ejection fraction and the left ventricular end-diastolic diameter remained unchanged before and after SBRT (P>0.05). The interventricular septum thickness showed a decreasing trend at 6 months after SBRT, but the difference was not statistically significant ((9.54±0.24) mm vs. (9.82±8.00) mm, P>0.05). The flow velocity of the left ventricular outflow tract, and the valve function and morphology were not affected by SBRT. At 6 months after SBRT, HE staining revealed necrosis in the irradiated target area of the myocardium in the 40 Gy dose group and the 25 Gy dose group, and the degree of necrosis in the irradiated interventricular septum was more obvious in the 40 Gy dose group as compared with the 25 Gy group. The combined histological analysis of the two groups showed that the necrotic area of the irradiated target area accounted for (26±9)% of the entire interventricular septum area, which was higher than that of the non-irradiated area (0) (P<0.05). There was no damage or necrosis of myocardial tissue outside the target irradiation area in both groups. The results of Masson staining showed that the percentage area of myocardial fibrosis was significantly higher in the irradiated target area than non-irradiated area ((12.6±5.3)% vs. (2.5±0.8)%, P<0.05). Conclusion: SBRT is safe and feasible for irradiating porcine ventricular septum.
Animals
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Feasibility Studies
;
Male
;
Necrosis
;
Radiosurgery/methods*
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Stroke Volume
;
Swine
;
Ventricular Function, Left
;
Ventricular Septum
7.Study on the reliability and validity of the Chinese Criteria of Health Scale for the elderly people.
Jing SHI ; Shang Xin LIU ; Jia Wei LI ; Yong Quan LIU ; Ji Xiang MA ; Jing QI ; Liang Xia CHEN ; Bai Yu ZHOU ; Shu Jun WANG ; Pu Lin YU
Chinese Journal of Preventive Medicine 2022;56(12):1809-1814
Objective: To evaluate the reliability and validity of the Chinese Criteria of Health Scale for the elderly people. Methods: A cross-sectional study was performed among older adults of Meiyuan Community in Haidian District, Beijing and Nanwangkong Village in Qingzhou City,Shandong Province during July 2021. Using a cluster sampling method, totally 667 elderly people were investigated by face-to-face interview, using the scale which was formulated after two rounds of the Delphi method and pilot study. The overall scale includes physical health, mental health and social health subscales, including 9, 52 and 15 items, respectively. Four weeks after the survey, 56 elderly people were randomly selected and repeated the survey with the same method. The test-retest reliability, split-half reliability and internal consistency reliability of the scale were evaluated, and the validity was evaluated at the same time, including construct validity and content validity. Results: A total of 710 questionnaires were distributed and 667 valid questionnaires were obtained, with a total effective rate of 93.94%. The score of the overall scale was 79.79±16.22, the scores of the physical health, mental health, social health sub-scores were 41.64±9.76, 26.82±3.92 and 11.34±5.19, respectively. The scale had excellent reliability. In the test-retest reliability, the intraclass correlation coefficient (ICC) of the overall scale and each subscale were 0.766-0.861, and the weighted Kappa values were 0.762-0.817. The Spearman-Brown coefficient of the overall scale and each subscale in the split-half reliability were 0.722-0.855 (all P<0.001). The Cronbach's α coefficients of the overall scale of internal consistency reliability and each subscale were 0.748-0.899, and the Cronbach's α coefficients of each dimension were from 0.709 to 0.963(all P<0.001). At the same time, the scale had good construct validity and content validity. The correlation coefficients between the score of each dimension and its sub-scale were larger, from 0.641 to 0.873 (all P<0.05). The cumulative variance contribution rates of the scale and three subscales were all more than 50% of the approved standard. A total of 11 common factors were extracted, and all the load values of each item on the corresponding factors were ≥0.04. Conclusion: The Chinese Criteria of Health Scale for the elderly people has good validity and excellent reliability. It can be used as a basis for the scientific division of the health status of the elderly, the formulation of relevant policies by the government and the provision of appropriate health services for the elderly.
Humans
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Aged
;
Reproducibility of Results
;
Cross-Sectional Studies
;
Pilot Projects
;
East Asian People
;
Surveys and Questionnaires
;
Psychometrics/methods*
;
China
8.Complications of hypertension in Minhang District of Shanghai based on electronic health records
Jiayun WANG ; Jun LI ; Tongtong LIANG ; Guo XUAN ; Pu LIU ; Jinling ZHANG ; Yuhong AO ; Jun LYU ; Chengyue LI
Shanghai Journal of Preventive Medicine 2022;34(9):895-900
ObjectiveTo determine the complications of hypertension among local residents in Minhang district of Shanghai, and provide scientific evidence for key preventive intervention. MethodsWe retrieved the data from the electronic health records, in which hypertensive patients were included for community-based management, in Minhang district of Shanghai from January 1st, 2014 to December 31st, 2018. A total of 38 599 hypertensive patients who had not had hypertension related clinical symptom when included in the electronic health records were enrolled in our study. Chi-square test and Cochran-Mantel-Haenszel test were used to determine the complications of hypertension. ResultsThe incidence proportion of complications was 10.77%, of which cerebrovascular damage was the highest (7.44%), followed by cardiac damage (3.55%) and peripheral vascular damage (0.81%). The incidence proportions in patients aged 18‒59, 60‒69, 70 and above were 5.53%, 9.61% and 16.19%, respectively. There was significant difference in the incidence proportions of complications among age groups (χ²=668.670, P<0.05). Cochran-Mantel-Haenszel test showed that in the hypertensive patients aged 60‒69, the incidence proportion of complications in females was lower than that in males (χ²=5.937, P<0.05). However, in those aged above 70, the incidence proportion of complications in females was higher than that in males (χ²=11.619, P<0.05). ConclusionIn patients with hypertension, the incidence proportions of cardiovascular and cerebrovascular diseases remains relatively high in Minhang district of Shanghai. Additionally, both age and gender have influence on the incidence of complications.
9.Sleep quality and sleep disturbances in Chinese pregnant women: a multicenter cross-sectional study.
Chu Jun ZHANG ; Yi Jia SU ; Yan CHEN ; Zhi Jie WANG ; San Lian HU ; Hua Jun XU ; Yu Pu LIU ; Xin Yi LI ; Hua Ming ZHU ; Hong Liang YI ; Jian GUAN ; Yin Cheng TENG ; Shan Kai YIN
Chinese Journal of Otorhinolaryngology Head and Neck Surgery 2022;57(3):308-316
Objective: This study aims to investigate the sleep quality of pregnant women in Xuhui District, Shanghai, and the related factors of sleep disturbances during pregnancy. Methods: From February 2019 to February 2021, we used online integrated sleep questionnaire (including PSQI, BQ, ESS, AIS) in Shanghai Jiao Tong University School of Medicine Affiliated Sixth People's Hospital, The International Peace Maternity and Child Health Hospitals of China Welfare Institution, and Shanghai Eighth People's Hospital, to investigate the sleep quality across pregnancy. We also collected maternal physical examination results, childbearing history, sociodemographic, and other clinical data. The prevalences and related factors of various sleep disturbances in pregnant women were analyzed, including insufficient/excessive nighttime sleep, low sleep efficiency, difficulty falling asleep, poor sleep quality, insomnia, daytime sleepiness, and high risk of sleep-disordered breathing (SDB). Results: This study includes 1 898 cases in the first trimester (T1), 3 099 cases in the second trimester (T2), and 1 539 cases in the third trimester (T3). Poor sleep quality (38.6%), daytime sleepiness (mild 41.9%, moderate 17.7%, severe 2.1%), and suspicious insomnia (32.3%) are most prevalent among women in T1 (P<0.01). In comparison, short sleep time (2.7%), long sleep time (8.6%), difficulty falling asleep (12.2%), poor sleep efficiency (35.4%), very poor sleep quality (6.7%), clinical insomnia (21.8%), and high-risk SDB (6.4%) are most prevalent among women in T3 (P<0.05). During pregnancy, late gestation (OR=1.016, 95%CI: 1.006-1.025) and multiple induced/drug abortions (OR=1.329, 95%CI: 1.043-1.692) are risk factors for poor sleep quality (PSQI>5), while multiple full-term deliveries (OR=0.800, 95%CI: 0.675-0.949) is its protective factor. Advanced maternal age (OR=0.976, 95%CI: 0.956-0.997), multiple full-term deliveries (OR=0.808, 95%CI: 0.680-0.959), late gestation (OR=0.983, 95%CI: 0.974-0.992) and hypertension (OR=0.572, 95%CI: 0.401-0.814) are protective factors for daytime sleepiness (ESS>6). The high-risk pregnancy category (OR=9.312, 95%CI: 1.156-74.978) is a risk factor for insomnia (AIS≥4), while multiple full-term deliveries (OR=0.815, 95%CI: 0.691-0.961) is its protective factor. High BMI (OR=1.334, 95%CI: 1.270-1.402) and hypertension (OR=4.427, 95%CI: 2.539-7.719) are risk factors for high-risk SDB in pregnant women. Conclusions: The prevalences of various sleep disturbances are high throughout pregnancy. Noticeably, symptoms of maternal SDB develop along with pregnancy. Different types of sleep disturbances are associated with different factors. Women of high-risk pregnancy category, in late gestation, with high BMI, hypertension, a history of induced/drug abortion, or without a history of full-term delivery can be at high risk of sleep disturbances during pregnancy.
Child
;
China/epidemiology*
;
Cross-Sectional Studies
;
Female
;
Humans
;
Pregnancy
;
Pregnancy Complications/epidemiology*
;
Pregnant Women
;
Sleep
;
Sleep Quality
10.Analysis on Feasibility of Electronic Nose Technology for Identification of Fritillariae Cirrhosae Bulbus from Authenticity and Specifications
Wen-hao FENG ; Liang-yu TIAN ; Jun-han SHI ; Xin-jing GUI ; Hui-jie ZHANG ; Pu ZHANG ; Yuan-yuan LI ; Lu ZHANG ; Yan-li WANG ; Jing YAO ; Xue-lin LI ; Rui-xin LIU
Chinese Journal of Experimental Traditional Medical Formulae 2021;27(13):108-118
Objective:To establish a new fast and accurate method for identifying the authenticity and specifications of Fritillariae Cirrhosae Bulbus based on electronic nose technology, and to discuss the feasibility of this technology in the identification of decoction pieces. Method:Fritillariae Cirrhosae Bulbus was used as the research object, 80 batches of samples to be tested were collected, and the olfactory sensory data of the electronic nose were taken as independent variables (

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