1.Introduction to Implementation Science Theories, Models, and Frameworks
Lixin SUN ; Enying GONG ; Yishu LIU ; Dan WU ; Chunyuan LI ; Shiyu LU ; Maoyi TIAN ; Qian LONG ; Dong XU ; Lijing YAN
Medical Journal of Peking Union Medical College Hospital 2025;16(5):1332-1343
Implementation Science is an interdisciplinary field dedicated to systematically studying how to effectively translate evidence-based research findings into practical application and implementation. In the health-related context, it focuses on enhancing the efficiency and quality of healthcare services, thereby facilitating the transition from scientific evidence to real-world practice. This article elaborates on Theories, Models, and Frameworks (TMF) within health-related Implementation Science, clarifying their basic concepts and classifications, and discussing their roles in guiding implementation processes. Furthermore, it reviews and prospects current research from three aspects: the constituent elements of TMF, their practical applications, and future directions. Five representative frameworks are emphasized, including the Consolidated Framework for Implementation Research (CFIR), the Practical Robust Implementation and Sustainability Model (PRISM), the Exploration, Preparation, Implementation, Sustainment (EPIS)framework, the Behavior Change Wheel (BCW), and the Normalization Process Theory (NPT). Additionally, resources such as the Dissemination & Implementation Models Webtool and the T-CaST tool are introduced to assist researchers in selecting appropriate TMFs based on project-specific needs.
2.Non-pharmaceutical intervention of Traditional Chinese Medicine in stable chronic obstructive pulmonary disease: a best evidence summary
Qian MA ; Lijuan ZHANG ; Yun CHEN ; Lijing LU ; Junchen LU ; Xie WU
Chinese Journal of Practical Nursing 2024;40(24):1893-1902
Objective:To systematically review, assess, extract, and summarize the most effective evidence on non-pharmacological traditional Chinese medicine interventions for promoting pulmonary rehabilitation in stable patients with chronic obstructive pulmonary disease, aiming to provide a theoretical foundation for clinical nurses to implement traditional Chinese medicine nursing interventions.Methods:According to the "6S" evidence model, relevant evidence on non-pharmacological traditional Chinese medicine interventions for stable chronic obstructive pulmonary disease was retrieved from domestic and foreign databases, guideline websites and professional society websites, including clinical decisions, guidelines, evidence summaries, systematic reviews, expert consensus, etc. The retrieval time was from January 1, 2018 to August 10, 2023. Two researchers evaluated the quality of the included literature, and extracted data and summarized evidence.Results:A total of 23 articles were included, including 6 guideline, 1 evidence summary, 7 systematic reviews, 8 Meta analysis and 1 expert consensus. The 37 evidences were summarized from 11 aspects, including target population, intervention focus, moxibustion therapy, acupoint sticking therapy, transcutaneous electrical acupoint stimulation, acupuncture therapy, acupoint injection therapy, traditional Chinese exercises, diet therapy, follow-up procedures, safety considerations.Conclusions:This study summarizes the evidences of traditional Chinese medicine non-drug pulmonary rehabilitation in the stable stage of chronic obstructive pulmonary disease. When applying the evidence in clinical practice, the traditional Chinese medicine nursing ability of nurses and the actual situation of patients should be fully considered to formulate an individualized traditional Chinese medicine nursing plan.
3.Research on the online teaching practice of Chinese traditional medicine based on the model of "Chaoxing learning platform + live broadcasting"
Lei HAO ; Yixin ZHANG ; Xue HAN ; Cheng SHI ; Lijing CAO ; Yu LIU ; Aiyangzi LU ; Xi WANG
Chinese Journal of Medical Education Research 2023;22(2):181-184
Taking the course of Chinese traditional medicine as an example, this paper discusses the construction and implementation effect of online teaching mode from the following four aspects: online teaching curriculum design, teaching implementation, teaching effect evaluation, and teaching reflection, with a view to providing beneficial reference for the follow-up hybrid teaching and promoting the construction of hybrid first-class courses by summarizing the experience of online teaching.
4.Construction of risk assessment index system of epidemic infectious diseases in primary and middle schools
SUN Lijing, ZHAI Yani, ZHOU Yuefang, ZHANG Zhe, LU Yinhao, LUO Chunyan
Chinese Journal of School Health 2022;43(8):1257-1262
Objective:
To establish a risk assessment index system for epidemic infectious diseases in primary and secondary schools, for early warning and prevention of school infectious diseases accurately and timely.
Methods:
Through literature review, the indicators pool was established by consulting relevant experts and referring to practical experience. Then two rounds of expert consultation using the Delphi method were conducted(13 experts of round 1, and 20 experts of round 2). The concentration of expert opinions (the average, the percentage of full marks) and the coordination of expert opinions (the coefficient of variation, the coordination coefficient W ) were calculated and analyzed. The coordination coefficient W was obtained by nonparametric Kendall s W test of multiple samples. According to the experts feedback, necessary addition, reduction and modification of the indicators were carried out to determine the evaluation index system, and the analytic hierarchy process (AHP) was used to calculate the weight of each indicator.
Results:
The expert authority coefficients of the two rounds of consultation were 0.89 and 0.88, respectively, and the form recovery rate was 100%. The range of the variation coefficient of each three level indicator was 0.07-0.31 and 0.06-0.19, and the coordination coefficient W was 0.25 and 0.47, respectively, indicating that the consistency and credibility of expert opinions were good. Finally, the risk assessment index system of infectious diseases in primary and secondary schools was established, which was composed of 5 first level indexes, 23 second level indexes and 86 third level indexes. The AHP was used to calculate the intra level weight of the index. The variation coefficient of five first level indicators of school health management and security system, school health personnel facilities, health monitoring and cognition level, severity and coping measures were 0.09, 0.06, 0.08, 0.12 and 0.06 , respectively, and the weight coefficients were 20.42%, 21.19%, 19.87%, 17.45% and 21.08%, respectively.
Conclusion
The risk assessment index system of school infectious diseases is applicable to primary and secondary schools. The initiative, coordination and authority of experts in this system are all high. It is of practical guiding significance for the early warning of infectious diseases in primary and secondary schools.
5.Epidemiological characteristics, diagnosis, treatment and prognosis of gallbladder cancer in China: a report of 6 159 cases
Xuheng SUN ; Yijun WANG ; Wei ZHANG ; Yajun GENG ; Yongsheng LI ; Tai REN ; Maolan LI ; Xu'an WANG ; Xiangsong WU ; Wenguang WU ; Wei CHEN ; Tao CHEN ; Min HE ; Hui WANG ; Linhua YANG ; Lu ZOU ; Peng PU ; Mingjie YANG ; Zhaonan LIU ; Wenqi TAO ; Jiayi FENG ; Ziheng JIA ; Zhiyuan ZHENG ; Lijing ZHONG ; Yuanying QIAN ; Ping DONG ; Xuefeng WANG ; Jun GU ; Lianxin LIU ; Yeben QIAN ; Jianfeng GU ; Yong LIU ; Yunfu CUI ; Bei SUN ; Bing LI ; Chenghao SHAO ; Xiaoqing JIANG ; Qiang MA ; Jinfang ZHENG ; Changjun LIU ; Hong CAO ; Xiaoliang CHEN ; Qiyun LI ; Lin WANG ; Kunhua WANG ; Lei ZHANG ; Linhui ZHENG ; Chunfu ZHU ; Hongyu CAI ; Jingyu CAO ; Haihong ZHU ; Jun LIU ; Xueyi DANG ; Jiansheng LIU ; Xueli ZHANG ; Junming XU ; Zhewei FEI ; Xiaoping YANG ; Jiahua YANG ; Zaiyang ZHANG ; Xulin WANG ; Yi WANG ; Jihui HAO ; Qiyu ZHANG ; Huihan JIN ; Chang LIU ; Wei HAN ; Jun YAN ; Buqiang WU ; Chaoliu DAI ; Wencai LYU ; Zhiwei QUAN ; Shuyou PENG ; Wei GONG ; Yingbin LIU
Chinese Journal of Digestive Surgery 2022;21(1):114-128
Objective:To investigate the epidemiological characteristics, diagnosis, treat-ment and prognosis of gallbladder cancer in China from 2010 to 2017.Methods:The single disease retrospective registration cohort study was conducted. Based on the concept of the real world study, the clinicopathological data, from multicenter retrospective clinical data database of gallbladder cancer of Chinese Research Group of Gallbladder Cancer (CRGGC), of 6 159 patients with gallbladder cancer who were admitted to 42 hospitals from January 2010 to December 2017 were collected. Observation indicators: (1) case resources; (2) age and sex distribution; (3) diagnosis; (4) surgical treatment and prognosis; (5) multimodality therapy and prognosis. The follow-up data of the 42 hospitals were collected and analyzed by the CRGGC. The main outcome indicator was the overall survival time from date of operation for surgical patients or date of diagnosis for non-surgical patients to the end of outcome event or the last follow-up. Measurement data with normal distribu-tion were represented as Mean±SD, and comparison between groups was conducted using the t test. Measurement data with skewed distribution were represented as M( Q1, Q3) or M(range), and com-parison between groups was conducted using the U test. Count data were described as absolute numbers or percentages, and comparison between groups was conducted using the chi-square test. Univariate analysis was performed using the Logistic forced regression model, and variables with P<0.1 in the univariate analysis were included for multivariate analysis. Multivariate analysis was performed using the Logistic stepwise regression model. The life table method was used to calculate survival rates and the Kaplan-Meier method was used to draw survival curves. Log-rank test was used for survival analysis. Results:(1) Case resources: of the 42 hospitals, there were 35 class A of tertiary hospitals and 7 class B of tertiary hospitals, 16 hospitals with high admission of gallbladder cancer and 26 hospitals with low admission of gallbladder cancer, respectively. Geographical distribution of the 42 hospitals: there were 9 hospitals in central China, 5 hospitals in northeast China, 22 hospitals in eastern China and 6 hospitals in western China. Geographical distribution of the 6 159 patients: there were 2 154 cases(34.973%) from central China, 705 cases(11.447%) from northeast China, 1 969 cases(31.969%) from eastern China and 1 331 cases(21.611%) from western China. The total average number of cases undergoing diagnosis and treatment in hospitals of the 6 159 patients was 18.3±4.5 per year, in which the average number of cases undergoing diagnosis and treatment in hospitals of 4 974 patients(80.760%) from hospitals with high admission of gallbladder cancer was 38.8±8.9 per year and the average number of cases undergoing diagnosis and treatment in hospitals of 1 185 patients(19.240%) from hospitals with low admission of gallbladder cancer was 5.7±1.9 per year. (2) Age and sex distribution: the age of 6 159 patients diagnosed as gallbladder cancer was 64(56,71) years, in which the age of 2 247 male patients(36.483%) diagnosed as gallbladder cancer was 64(58,71)years and the age of 3 912 female patients(63.517%) diagnosed as gallbladder cancer was 63(55,71)years. The sex ratio of female to male was 1.74:1. Of 6 159 patients, 3 886 cases(63.095%) were diagnosed as gallbladder cancer at 56 to 75 years old. There was a significant difference on age at diagnosis between male and female patients ( Z=-3.99, P<0.001). (3) Diagnosis: of 6 159 patients, 2 503 cases(40.640%) were initially diagnosed as gallbladder cancer and 3 656 cases(59.360%) were initially diagnosed as non-gallbladder cancer. There were 2 110 patients(34.259%) not undergoing surgical treatment, of which 200 cases(9.479%) were initially diagnosed as gallbladder cancer and 1 910 cases(90.521%) were initially diagnosed as non-gallbladder cancer. There were 4 049 patients(65.741%) undergoing surgical treatment, of which 2 303 cases(56.878%) were initially diagnosed as gallbladder cancer and 1 746 cases(43.122%) were initial diagnosed as non-gallbladder cancer. Of the 1 746 patients who were initially diagnosed as non-gallbladder cancer, there were 774 cases(19.116%) diagnosed as gallbladder cancer during operation and 972 cases(24.006%) diagnosed as gallbladder cancer after operation. Of 6 159 patients, there were 2 521 cases(40.932%), 2 335 cases(37.912%) and 1 114 cases(18.087%) undergoing ultrasound, computed tomography (CT) or magnetic resonance imaging (MRI) examination before initial diagnosis, respec-tively, and there were 3 259 cases(52.914%), 3 172 cases(51.502%) and 4 016 cases(65.205%) undergoing serum carcinoembryonic antigen, CA19-9 or CA125 examination before initially diagnosis, respectively. One patient may underwent multiple examinations. Results of univariate analysis showed that geographical distribution of hospitals (eastern China or western China), age ≥72 years, gallbladder cancer annual admission of hospitals, whether undergoing ultrasound, CT, MRI, serum carcinoembryonic antigen, CA19-9 or CA125 examination before initially diagnosis were related factors influencing initial diagnosis of gallbladder cancer patients ( odds ratio=1.45, 1.98, 0.69, 0.68, 2.43, 0.41, 1.63, 0.41, 0.39, 0.42, 95% confidence interval as 1.21-1.74, 1.64-2.40, 0.59-0.80, 0.60-0.78, 2.19-2.70, 0.37-0.45, 1.43-1.86, 0.37-0.45, 0.35-0.43, 0.38-0.47, P<0.05). Results of multivariate analysis showed that geographical distribution of hospitals (eastern China or western China), sex, age ≥72 years, gallbladder cancer annual admission of hospitals and cases undergoing ultrasound, CT, serum CA19-9 examination before initially diagnosis were indepen-dent influencing factors influencing initial diagnosis of gallbladder cancer patients ( odds ratio=1.36, 1.42, 0.89, 0.67, 1.85, 1.56, 1.57, 0.39, 95% confidence interval as 1.13-1.64, 1.16-1.73, 0.79-0.99, 0.57-0.78, 1.60-2.14, 1.38-1.77, 1.38-1.79, 0.35-0.43, P<0.05). (4) Surgical treatment and prognosis. Of the 4 049 patients undergoing surgical treatment, there were 2 447 cases(60.435%) with complete pathological staging data and follow-up data. Cases with pathological staging as stage 0, stage Ⅰ, stage Ⅱ, stage Ⅲa, stage Ⅲb, stage Ⅳa and stage Ⅳb were 85(3.474%), 201(8.214%), 71(2.902%), 890(36.371%), 382(15.611%), 33(1.348%) and 785(32.080%), respectively. The median follow-up time and median postoperative overall survival time of the 2 447 cases were 55.75 months (95% confidence interval as 52.78-58.35) and 23.46 months (95% confidence interval as 21.23-25.71), respectively. There was a significant difference in the overall survival between cases with pathological staging as stage 0, stage Ⅰ, stage Ⅱ, stage Ⅲa, stage Ⅲb, stage Ⅳa and stage Ⅳb ( χ2=512.47, P<0.001). Of the 4 049 patients undergoing surgical treatment, there were 2 988 cases(73.796%) with resectable tumor, 177 cases(4.371%) with unresectable tumor and 884 cases(21.833%) with tumor unassessable for resectabi-lity. Of the 2 988 cases with resectable tumor, there were 2 036 cases(68.139%) undergoing radical resection, 504 cases(16.867%) undergoing non-radical resection and 448 cases(14.994%) with operation unassessable for curative effect. Of the 2 447 cases with complete pathological staging data and follow-up data who underwent surgical treatment, there were 53 cases(2.166%) with unresectable tumor, 300 cases(12.260%) with resectable tumor and receiving non-radical resection, 1 441 cases(58.888%) with resectable tumor and receiving radical resection, 653 cases(26.686%) with resectable tumor and receiving operation unassessable for curative effect. There were 733 cases not undergoing surgical treatment with complete pathological staging data and follow-up data. There was a significant difference in the overall survival between cases not undergoing surgical treatment, cases undergoing surgical treatment for unresectable tumor, cases undergoing non-radical resection for resectable tumor and cases undergoing radical resection for resectable tumor ( χ2=121.04, P<0.001). (5) Multimodality therapy and prognosis: of 6 159 patients, there were 541 cases(8.784%) under-going postoperative adjuvant chemotherapy and advanced chemotherapy, 76 cases(1.234%) under-going radiotherapy. There were 1 170 advanced gallbladder cancer (pathological staging ≥stage Ⅲa) patients undergoing radical resection, including 126 cases(10.769%) with post-operative adjuvant chemotherapy and 1 044 cases(89.231%) without postoperative adjuvant chemo-therapy. There was no significant difference in the overall survival between cases with post-operative adjuvant chemotherapy and cases without postoperative adjuvant chemotherapy ( χ2=0.23, P=0.629). There were 658 patients with pathological staging as stage Ⅲa who underwent radical resection, including 66 cases(10.030%) with postoperative adjuvant chemotherapy and 592 cases(89.970%) without postoperative adjuvant chemotherapy. There was no significant difference in the overall survival between cases with postoperative adjuvant chemotherapy and cases without postoperative adjuvant chemotherapy ( χ2=0.05, P=0.817). There were 512 patients with pathological staging ≥stage Ⅲb who underwent radical resection, including 60 cases(11.719%) with postoperative adjuvant chemotherapy and 452 cases(88.281%) without postoperative adjuvant chemotherapy. There was no significant difference in the overall survival between cases with postoperative adjuvant chemo-therapy and cases without post-operative adjuvant chemo-therapy ( χ2=1.50, P=0.220). Conclusions:There are more women than men with gallbladder cancer in China and more than half of patients are diagnosed at the age of 56 to 75 years. Cases undergoing ultrasound, CT, serum CA19-9 examination before initial diagnosis are independent influencing factors influencing initial diagnosis of gallbladder cancer patients. Preoperative resectability evaluation can improve the therapy strategy and patient prognosis. Adjuvant chemotherapy for gallbladder cancer is not standardized and in low proportion in China.
6.The experience of self-identity in young adults with cancer: a qualitative study
Lin TANG ; Aifeng MENG ; Xiaoxu ZHI ; Ping ZHU ; Yalou PU ; Lijing LU ; Pengcheng WANG ; Xiaoli LI
Chinese Journal of Practical Nursing 2021;37(36):2842-2847
Objective:To explore the real experience of developing self-consciousness, self-discovery, self-identity crisis and self-cognition improvement of young cancer patients from the initial stage of diagnosis, and to provide reference for medical staff to construct the intervention mode of psychosocial support.Methods:Using phenomenological method in qualitative research, 14 young cancer patients aged 18-25 years from April 2019 to August 2020 in Jiangsu Cancer Hospital were interviewed in semi-structured way separately at three time points: initial diagnosis, 6 months after diagnosis and 12 months after diagnosis. 7-step Colaizzi analysis was used to analyze the data.Results:Three themes were extracted as following. The dilemma of self-cognition, self-identity biases and the exploration of self-identity.Conclusions:Attention should be paid to the psychological problems of young cancer patients at all stages, and meet the needs of patients to talk, cooperate with professional psychotherapists, encourage patients to recognize themselves, tap the inner positive power, so as to improve their sense of self-identity.
7.Experience of young cancer patients using mobile health applications: a qualitative research
Pengcheng WANG ; Di WANG ; Aifeng MENG ; Xiaoxu ZHI ; Ping ZHU ; Lijing LU ; Lin TANG ; Xiaoli LI
Chinese Journal of Modern Nursing 2021;27(16):2151-2155
Objective:To explore the experience of young cancer patients using mobile health applications, so as to provide a basis for improving the utilization rate and sustainability of health applications.Methods:From May to June 2020, purpose sampling was used to select 12 young cancer patients in the Internal Medicine Ward of a ClassⅢ Grade A cancer hospital in Nanjing, Jiangsu Province. The semi-structured interview with patients was conducted with the descriptive phenomenological method. The Colaizzi 7-step analysis method was used to analyze the data and refine the theme.Results:A total of four themes were summarized, namely, there was a difference in usage attitudes (being used for rehabilitation management, as a means of verification, generating resistance, and reducing the frequency of use) , insufficient function development and reduced user experience (lack of autonomy, insufficient intelligent evaluation) , desiring a professional operating agency, recognizing the development prospects and looking forward to perfection.Conclusions:In follow-up studies, researchers need to fully consider the patient's preference and usage habits for health applications on the basis of meeting the needs of disease management.
8. Key points for the prevention and treatment of the novel coronavirus pneumonia in the elderly
Qiong CHEN ; Weiwei YU ; Lijing WANG ; Huan XI ; Qiang ZHANG ; Xinyu CHEN ; Kui HUANG ; Xiang LU ; Xinmin LIU ; Cuntai ZHANG ; Jianye WANG
Chinese Journal of Geriatrics 2020;39(2):113-118
The population is commonly susceptible to the 2019 novel coronavirus(2019-nCoV), especially the elderly with comorbidities.Elderly patients infected with 2019-nCoV tend to have higher rates of severe illnesses and mortality.Immunoaging is an important cause of severe novel coronavirus pneumonia(NCP)in the elderly.Due to the combination of underlying diseases, elderly patients may exhibit a typical manifestations in clinical symptoms, supplementary examinations and pulmonary imaging, deserving particular attention.The general condition of the elderly should be considered during diagnosis and treatment.In addition to routine care and measures such as oxygen therapy, antiviral therapy and respiratory support, treatment of underlying disease, nutritional support, sputum expectoration, complication prevention and psychological support should also be considered for elderly patients.Based on literature review and expert panel discussion, we drafted the Key Points for the Prevention and Treatment of the Novel Coronavirus Pneumonia in the elderly, aiming to provide help with the prevention and treatment of NCP and the reduction of harm to the elderly population.
9.Classification of Rice-wine Processed Coptidis Rhizoma Decoction Piece Based on Subjective and Objective Combination Weighting Method and Quality Constant Method
Xuelian WANG ; Chenglin MU ; Taotao LU ; Lijing TANG ; Xin ZHOU ; Xi KANG ; Rongping YANG
China Pharmacy 2020;31(23):2853-2857
OBJECTIVE:To provide refere nce f or the quality control and evaluation of rice-wine processed Coptidis Rhizoma decoction piece. METHODS :Taking 17 batches of rice-wine processed Coptidis Rhizoma decoction piece from different manufacturers as samples ,HPLC method was adopted to determine the contents of 4 kinds of alkaloids as epiberberine ,coptisine, palmatine and berberine. The compound weights of epiberberine ,berberine,palmatine and berberine were calculated by the subjective and objective combination weighting method (AHP combined with variation coefficient ). Then the quality evaluation method was used to evaluate the quality of decoction pieces combined with the appearance of decoction pieces and the contents of 4 alkaloids. The percent mass constant was calculated and the grade of rice-wine processed Coptidis Rhizoma decoction piece was classified. RESULTS :According to the results of content determination of 4 kinds of alkaloids ,among 17 batches of samples ,a total of 13 batches of samples met the requirements of 2015 edition of Chinese Pharmacopoeia (part Ⅳ). Mass constants of 13 batches of qualified samples were 10.03-26.96,and the percent mass constants were 37.20%-100%. If the percent mass constant ≥ 80% of the sample was listed as the first-class product ,the sample with the percent mass constant between 50%-<80% was classified as the second-class product ,and the rest was listed as the third-class product ,therefore the quality constant of first-class product was ≥21.57,that of second-class product was 13.48-<21.57,and that of third-class product was <13.48. According to the grading standard ,3 batches of 13 batches of qualified samples are classified as first-class products ,6 batches are classified as second-class products ,4 batches are classified as third-class products. CONCLUSIONS :The established subjective and objective combination weighting method and quality constant method can more scientifically and reasonably classify rice-wine processed Coptidis Rhizoma decoction piece.
10.Distribution of methamphetamine concentration in saliva and urine samples and the analysis of the initial screening
Lijing ZHONG ; Kuan LIN ; Leiping ZHANG ; Xuemei JIANG ; Ting QIAO ; Jiqiang MA ; Liang LU ; Chaojin SONG ; Daming ZHANG
Chinese Journal of Forensic Medicine 2018;33(1):26-30
Objective To obtain methamphetamine concentration profiles in saliva and urine samples of drug addicts and to screen the colloidal gold strip. Methods Methamphetamine concentration in saliva and urine samples of drug addicts was determined by liquid chromatography tandem mass spectrometry. The initial screening was obtained by colloidal gold strip test. The results were compared and analyzed. Results using the method of protein and fluid MRM scan method to detect direct precipitation, saliva is linear in the range of 1~100ng/mL, the linear correlation coefficient is 0.9987, the detection limit is 0.1ng/mL, the limit of quantification was 1ng/mL, the urine is linear in the range of 1~100ng/mL, the linear correlation coefficient is 0.9943, the detection limit is 0.5ng/mL, the limit of quantification was 1ng/mL. Saliva and urine samples diluted, the concentration in the linear range. Saliva and urine samples of four types of methamphetamine colloidal gold reagent strip were screened directly, and the results were judged visually. Conclusion the detection rate of colloidal gold strip is about 79%, the detection rate of saliva is about 81%, and the detection rate can be increased to more than 93% by using two reagent strips. Combined with the initial screening results and the instrument confirmation concentration, it can be found that the gray zone setting and sensitivity setting have certain influence on the detection rate, and it is suggested to improve the sensitivity to meet the needs of screening.


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