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  1. Article ; Online: Death receptor 5 promotes tumor progression in gastric cancer.

    Chen, Junbing / Li, Lin / Huangfu, Longtao / Du, Hong / Ji, Xin / Xing, Xiaofang / Ji, Jiafu

    FEBS open bio

    2023  Volume 13, Issue 12, Page(s) 2375–2388

    Abstract: Death receptor 5 (DR5) can inhibit malignant proliferation via tumor necrosis factor-related apoptosis-inducing ligand (TRAIL)-induced apoptosis in many cancers. Here we examined the expression and sublocalization of DR5 in gastric cancer, as well as its ...

    Abstract Death receptor 5 (DR5) can inhibit malignant proliferation via tumor necrosis factor-related apoptosis-inducing ligand (TRAIL)-induced apoptosis in many cancers. Here we examined the expression and sublocalization of DR5 in gastric cancer, as well as its effects on clinical prognosis and cellular processes. Our analysis included a cohort of 240 gastric cancer patients. Bioinformatic analysis showed a significant correlation between DR5 and DNA replication, tumor mutation burden (TMB), and tumor stemness. Unlike death receptor 4 (DR4TRAIL-R1), DR5 was expressed in the cytoplasm and nucleus, and was found to be positively correlated with lymphovascular invasion, lymph node metastasis, and TNM stage. Patients with positive DR5 had worse overall survival (OS) (P = 0.006). The multivariate Cox model showed that DR5 is an independent poor prognostic factor (hazard ratio = 1.693). Furthermore, knockdown of DR5 inhibited aggressive behaviors, including proliferation and metastasis in gastric cancer cells, and inhibited lung metastasis in vivo. In summary, nuclear localization of DR5 expression is a poor prognosis factor in gastric cancer and promotes growth, invasion, and metastasis of tumor cells in vitro and in vivo.
    MeSH term(s) Humans ; Apoptosis/genetics ; Lung Neoplasms/metabolism ; Neoplastic Processes ; Receptors, TNF-Related Apoptosis-Inducing Ligand/genetics ; Receptors, TNF-Related Apoptosis-Inducing Ligand/metabolism ; Stomach Neoplasms/genetics ; Stomach Neoplasms/pathology
    Chemical Substances Receptors, TNF-Related Apoptosis-Inducing Ligand ; TNFRSF10B protein, human
    Language English
    Publishing date 2023-11-14
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2651702-4
    ISSN 2211-5463 ; 2211-5463
    ISSN (online) 2211-5463
    ISSN 2211-5463
    DOI 10.1002/2211-5463.13725
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article: PTPRD/PTPRT mutation correlates to treatment outcomes of immunotherapy and immune landscape in pan-cancers.

    Wang, Gangjian / Ji, Xin / Wang, Haojie / Tang, Xiaohuan / Xing, Xiaofang / Ji, Jiafu

    Chinese journal of cancer research = Chung-kuo yen cheng yen chiu

    2023  Volume 35, Issue 3, Page(s) 316–330

    Abstract: Objective: PTPRD and PTPRT are phosphatases of the JAK-STAT pathway related to immunotherapy. However, the role and mechanism of PTPRD and PTPRT mutations in multiple cancers remains unclear.: Methods: Clinical data and PTPRD/PTPRT mutation ... ...

    Abstract Objective: PTPRD and PTPRT are phosphatases of the JAK-STAT pathway related to immunotherapy. However, the role and mechanism of PTPRD and PTPRT mutations in multiple cancers remains unclear.
    Methods: Clinical data and PTPRD/PTPRT mutation information from 12 cohorts were collected and classified as a discovery cohort and three validation cohorts. The association between PTPRD/PTPRT mutations and immunotherapeutic efficacy was analyzed. Then, the association between PTPRD/PTPRT mutation and immune profiles was analyzed using The Cancer Genome Atlas (TCGA) cohort.
    Results: A total of 2,392 patients across 20 cancer types were included in this study. Our results showed that patients harboring PTPRD/PTPRT mutation, especially co-mutations, had a significantly elevated response rate to immunotherapy in multiple cancers. Patients with PTPRD/PTPRT mutation had a higher objective response rate (ORR) (P=0.002), longer overall survival (OS) (P=0.005) and progression-free survival (PFS) (P=0.038). Importantly, the above findings were further verified in validation cohorts. In addition, we found that the PTPRD/PTPRT co-mutations (co-mut) subgroup exhibited an immune-activated phenotype, the wild-type subgroup tended to have an immune-desert phenotype, and the uni-mutation (uni-mut) subgroup might have an immune-mixed phenotype. Our further analyses suggested that combining programmed cell death ligand 1 (PD-L1) expression and PTPRD/PTPRT mutation can be used to screen patients who may benefit from immunotherapy.
    Conclusions: PTPRD/PTPRT mutation could serve as a potential predictive biomarker for cancer immunotherapy.
    Language English
    Publishing date 2023-07-07
    Publishing country China
    Document type Journal Article
    ZDB-ID 1067584-x
    ISSN 1993-0631 ; 1000-9604
    ISSN (online) 1993-0631
    ISSN 1000-9604
    DOI 10.21147/j.issn.1000-9604.2023.03.09
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Silencing of circ_0078607 prevents development of gastric cancer and inactivates the ERK1/2/AKT pathway through the miR-188-3p/RAP1B axis.

    Bian, Weixin / Liu, Zhiqiang / Chu, Yanjie / Xing, Xiaofang

    Anti-cancer drugs

    2021  Volume 32, Issue 9, Page(s) 909–918

    Abstract: The aim of this study is to explore the expression and mechanism of circ_0078607 on proliferation and apoptosis of gastric cancer. Real time PCR (RT-PCR) was performed to detect the expression of circ_0078607 in gastric cancer tumor tissues, plasma and ... ...

    Abstract The aim of this study is to explore the expression and mechanism of circ_0078607 on proliferation and apoptosis of gastric cancer. Real time PCR (RT-PCR) was performed to detect the expression of circ_0078607 in gastric cancer tumor tissues, plasma and cell lines. Cell viability was detected by cell counting Kit-8. Cell proliferation ability was assessed by cell cycle assay. The samples were analyzed by flow cytometry for the detection of apoptosis. Luciferase assay and RNA immunoprecipitation (RIP) were carried out to verify the relationship between circ_0078607 and miR-188-3p, miR-188-3p, and RAP1B. Western blot was employed to detect the protein level of RAP1B, ERK1/2 and AKT. In vivo, the effect of circ_0078607 on gastric cancer tumor growth was detected by lentivirus vector injection. Here, we found the increased level of circ_0078607 in gastric cancer tissues, gastric cancer patients plasma and cell lines. Knockdown of circ_0078607 could prevent proliferation and induce cell apoptosis in MKN-28 cells. Then we verified that circ_0078607 could interact with miR-188-3p by performed luciferase assay and RIP. Furthermore, we observed that RAP1B was a potential target of miR-188-3p. Next, we found that miR-188-3p inhibitor or overexpression of RAP1B could prevent the anti-tumor function of sh-circ_0078607. Silencing of circ_0078607 inhibited ERK1/2/AKT signal pathways via regulating miR-188-3p/RAP1B. In vivo, knockdown of circ_0078607 inhibited tumor growth. Knockdown of circ_0078607 inhibits the proliferation and induces apoptosis of gastric cancer via miR-188-3p/RAP1B signal pathway.
    MeSH term(s) Cell Cycle/drug effects ; Cell Line, Tumor ; Cell Movement/drug effects ; Cell Survival/drug effects ; DNA, Circular/biosynthesis ; Female ; Gene Expression Regulation, Neoplastic ; Humans ; MAP Kinase Signaling System/physiology ; Male ; MicroRNAs/biosynthesis ; Stomach Neoplasms ; rap GTP-Binding Proteins/biosynthesis
    Chemical Substances DNA, Circular ; MIRN188 microRNA, human ; MicroRNAs ; RAP1B protein, human (EC 3.6.1.-) ; rap GTP-Binding Proteins (EC 3.6.5.2)
    Language English
    Publishing date 2021-05-10
    Publishing country England
    Document type Journal Article
    ZDB-ID 1065301-6
    ISSN 1473-5741 ; 0959-4973
    ISSN (online) 1473-5741
    ISSN 0959-4973
    DOI 10.1097/CAD.0000000000001083
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article: Circular RNA CircCDYL Regulates Proliferation and Apoptosis in Non-Small Cell Lung Cancer Cells by Sponging miR-185-5p and Upregulating TNRC6A.

    Bian, Wei-Xin / Xue, Feng / Wang, Li-Yan / Xing, Xiao-Fang

    publication RETRACTED

    Cancer management and research

    2021  Volume 13, Page(s) 633–642

    Abstract: Aim: A series of research reveal that circular RNA (circRNA) plays a vital role in regulating the development of tumor cells. In this research, we would explore the role and mechanism of circCDYL in non-small cell lung cancer (NSCLC).: Methods: RT- ... ...

    Abstract Aim: A series of research reveal that circular RNA (circRNA) plays a vital role in regulating the development of tumor cells. In this research, we would explore the role and mechanism of circCDYL in non-small cell lung cancer (NSCLC).
    Methods: RT-PCR was performed to detect the expression of circCDYL in NSCLC tissues, plasma, and cell lines. The tumor cell proliferation ability was evaluated by clone formation assay, and cell cycle determination. Flow cytometry was used to detect apoptosis in NSCLC cell lines. Western blot and RT-PCR were used to assess the expression of proteins and genes. Luciferase assay was performed to confirm the relationship of circRNA-miRNA-mRNA.
    Results: The decreased level of circCDYL was observed in NSCLC patients' tissues and plasma, which was also downregulated in NSCLC cell lines. Forced expression of circCDYL inhibited cell viability, proliferation and induced apoptosis in A549 cells. Luciferase assay verified that circCDYL could bind with miR-185-5p and confirmed that TNRC6A was a downstream target of miR-185-5p. Overexpression of miR-185-5p or silencing of TNRC6A could inhibit the anti-tumor effect of circCDYL in A549 cells via regulating the ERK1/2 signal.
    Conclusion: Here, we revealed that circCDYL inhibited proliferation and induced apoptosis in NSCLC cell lines via regulating ERK1/2 signal, and the mechanism of this progression may target miR-185-5p/TNRC6A, which provided a theoretical basis for clinical therapy.
    Language English
    Publishing date 2021-01-25
    Publishing country New Zealand
    Document type Journal Article ; Retracted Publication
    ZDB-ID 2508013-1
    ISSN 1179-1322
    ISSN 1179-1322
    DOI 10.2147/CMAR.S280315
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: T-cells infiltration mediates the association between neutrophil/lymphocyte ratio and survival in gastric cancer.

    He, Qifei / Huangfu, Longtao / Fan, Biao / Zhuang, Qianzheng / He, Liu / Li, Lin / You, Wei / Xing, Xiaofang

    Cancer medicine

    2023  Volume 12, Issue 15, Page(s) 15893–15902

    Abstract: Background: Neutrophil/lymphocyte ratio (NLR) is a vital index for systemic inflammation and a prognostic indicator for gastric cancer (GC). Despite the abundant literature on NLR's prognostic value for GC, the underlying factors mediating its impact on ...

    Abstract Background: Neutrophil/lymphocyte ratio (NLR) is a vital index for systemic inflammation and a prognostic indicator for gastric cancer (GC). Despite the abundant literature on NLR's prognostic value for GC, the underlying factors mediating its impact on survival remain unclear. The objective of this study was to analyze the role of NLR in different prognostic models and subgroups, and investigate the mediating effects of immune infiltrates between NLR and survival.
    Methods: A total of 924 patients who underwent D2 lymph node resection were enrolled in this study. According to the level of NLR, patients were divided into two groups, the high and low NLR groups. Clinical parameters, indexes related to immune infiltrates, and survival were compared between the two groups. Prognostic models, interaction analysis, and mediating effects analysis were performed to investigate the clinical association of NLR, immune infiltrates, and survival.
    Results: The infiltration of CD3+ and CD8+ T cells was significantly different in the two NLR groups. The level of NLR was an independent prognostic predictor of GC. In addition, an interaction effect exists between NLR and MMR status on the prognosis of GC (p-interaction <0.01). Lastly, the mediating effect analysis revealed that the infiltration level of CD3+ T cells was the mediating factor between NLR and survival (p < 0.001).
    Conclusions: The level of NLR is an independent prognostic predictor of GC. The effect of NLR on prognosis is partly mediated by CD3+ T-cell infiltration.
    MeSH term(s) Humans ; Neutrophils/pathology ; Stomach Neoplasms/pathology ; Lymphocytes/pathology ; Prognosis ; Lymphocyte Subsets/pathology ; Retrospective Studies
    Language English
    Publishing date 2023-06-12
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2659751-2
    ISSN 2045-7634 ; 2045-7634
    ISSN (online) 2045-7634
    ISSN 2045-7634
    DOI 10.1002/cam4.6228
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: Erratum: CXCL16 Promotes Gastric Cancer Tumorigenesis via ADAM10-Dependent CXCL16/CXCR6 Axis and Activates Akt and MAPK Signaling Pathways: Erratum.

    Han, Jing / Fu, Runjia / Chen, Cong / Cheng, Xiaojing / Guo, Ting / Huangfu, Longtao / Li, Xiaomei / Du, Hong / Xing, Xiaofang / Ji, Jiafu

    International journal of biological sciences

    2023  Volume 19, Issue 10, Page(s) 3285–3287

    Abstract: This corrects the article DOI: 10.7150/ijbs.57826.]. ...

    Abstract [This corrects the article DOI: 10.7150/ijbs.57826.].
    Language English
    Publishing date 2023-06-21
    Publishing country Australia
    Document type Published Erratum
    ZDB-ID 2179208-2
    ISSN 1449-2288 ; 1449-2288
    ISSN (online) 1449-2288
    ISSN 1449-2288
    DOI 10.7150/ijbs.84342
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: Aspartate β-Hydroxylase Serves as a Prognostic Biomarker for Neoadjuvant Chemotherapy in Gastric Cancer.

    Gan, Xuejun / Li, Shen / Wang, Yiding / Du, Hong / Hu, Ying / Xing, Xiaofang / Cheng, Xiaojing / Yan, Yan / Li, Ziyu

    International journal of molecular sciences

    2023  Volume 24, Issue 6

    Abstract: Neoadjuvant chemotherapy (NACT) has been established as being an effective treatment for advanced gastric cancer (GC), while the predictive biomarker of NACT efficacy remains under investigation. Aspartate β-hydroxylase (ASPH) represents an attractive ... ...

    Abstract Neoadjuvant chemotherapy (NACT) has been established as being an effective treatment for advanced gastric cancer (GC), while the predictive biomarker of NACT efficacy remains under investigation. Aspartate β-hydroxylase (ASPH) represents an attractive target which is a highly conserved transmembrane enzyme overexpressed in
    MeSH term(s) Humans ; Stomach Neoplasms/drug therapy ; Stomach Neoplasms/genetics ; Stomach Neoplasms/pathology ; Aspartic Acid ; Neoadjuvant Therapy ; Prognosis ; Mixed Function Oxygenases/metabolism ; Biomarkers ; Membrane Proteins/metabolism ; Oncogene Proteins
    Chemical Substances Aspartic Acid (30KYC7MIAI) ; Mixed Function Oxygenases (EC 1.-) ; Biomarkers ; LAPTM4B protein, human ; Membrane Proteins ; Oncogene Proteins
    Language English
    Publishing date 2023-03-13
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2019364-6
    ISSN 1422-0067 ; 1422-0067 ; 1661-6596
    ISSN (online) 1422-0067
    ISSN 1422-0067 ; 1661-6596
    DOI 10.3390/ijms24065482
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  8. Article ; Online: Characterization of glycometabolism and tumor immune microenvironment for predicting clinical outcomes in gastric cancer.

    Shi, Jinyao / Wu, Zhouqiao / Wu, Xiaolong / Huangfu, Longtao / Guo, Ting / Cheng, Xiaojing / Han, Jing / Li, Ziyu / Xing, Xiaofang / Ji, Jiafu

    iScience

    2023  Volume 26, Issue 3, Page(s) 106214

    Abstract: Recent evidence demonstrates that the reprogramming of energy metabolism can interact with the tumor immune microenvironment, thereby participating in the progression of cancer. In this study, multi-omics data of 2471 gastric cancer samples were used to ... ...

    Abstract Recent evidence demonstrates that the reprogramming of energy metabolism can interact with the tumor immune microenvironment, thereby participating in the progression of cancer. In this study, multi-omics data of 2471 gastric cancer samples were used to identify tumor glycometabolism and its correlation with tumor immune microenvironment. A series of bioinformatic approaches were performed to establish a scoring system to predict the survival and response of chemotherapy and immunotherapy. Three glycometabolic subtypes and two immune clustering subgroups of gastric cancer were determined. We further established a Gluco-Immune Scoring system to quantify the cancer glycometabolic status and immune infiltration of individual patients. Patients with low Gluco-Immune Score were sensitive to adjuvant chemotherapy, while patients with high Gluco-Immune Score may benefit from immunotherapy. Our results indicate that in gastric cancer, the assessment of tumor glucose metabolism and immune microenvironment has application value for the prediction of curative effects and the formulation of combined treatment strategies.
    Language English
    Publishing date 2023-02-16
    Publishing country United States
    Document type Journal Article
    ISSN 2589-0042
    ISSN (online) 2589-0042
    DOI 10.1016/j.isci.2023.106214
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article ; Online: Transcriptome profiling of patient-derived tumor xenografts suggests novel extracellular matrix-related signatures for gastric cancer prognosis prediction.

    Deng, Ziqian / Guo, Ting / Bi, Jiwang / Wang, Gangjian / Hu, Ying / Du, Hong / Zhou, Yuan / Jia, Shuqin / Xing, Xiaofang / Ji, Jiafu

    Journal of translational medicine

    2023  Volume 21, Issue 1, Page(s) 638

    Abstract: Background: A major obstacle to the development of personalized therapies for gastric cancer (GC) is the prevalent heterogeneity at the intra-tumor, intra-patient, and inter-patient levels. Although the pathological stage and histological subtype ... ...

    Abstract Background: A major obstacle to the development of personalized therapies for gastric cancer (GC) is the prevalent heterogeneity at the intra-tumor, intra-patient, and inter-patient levels. Although the pathological stage and histological subtype diagnosis can approximately predict prognosis, GC heterogeneity is rarely considered. The extracellular matrix (ECM), a major component of the tumor microenvironment (TME), extensively interacts with tumor and immune cells, providing a possible proxy to investigate GC heterogeneity. However, ECM consists of numerous protein components, and there are no suitable models to screen ECM-related genes contributing to tumor growth and prognosis. We constructed patient-derived tumor xenograft (PDTX) models to obtain robust ECM-related transcriptomic signatures to improve GC prognosis prediction and therapy design.
    Methods: One hundred twenty two primary GC tumor tissues were collected to construct PDTX models. The tumorigenesis rate and its relationship with GC prognosis were investigated. Transcriptome profiling was performed for PDTX-originating tumors, and least absolute shrinkage and selection operator (LASSO) Cox regression analysis was applied to extract prognostic ECM signatures and establish PDTX tumorigenicity-related gene (PTG) scores. The predictive ability of the PTG score was validated using two independent cohorts. Finally, we combined PTG score, age, and pathological stage information to establish a robust nomogram for GC prognosis prediction.
    Results: We found that PDTX tumorigenicity indicated a poor prognosis in patients with GC, even at the same pathological stage. Transcriptome profiling of PDTX-originating GC tissues and corresponding normal controls identified 383 differentially expressed genes, with enrichment of ECM-related genes. A robust prognosis prediction model using the PTG score showed robust performance in two validation cohorts. A high PTG score was associated with elevated M2 polarized macrophage and cancer-associated fibroblast infiltration. Finally, combining the PTG score with age and TNM stage resulted in a more effective prognostic model than age or TNM stage alone.
    Conclusions: We found that ECM-related signatures may contribute to PDTX tumorigenesis and indicate a poor prognosis in GC. A feasible survival prediction model was built based on the PTG score, which was associated with immune cell infiltration. Together with patient ages and pathological TNM stages, PTG score could be a new approach for GC prognosis prediction.
    MeSH term(s) Humans ; Animals ; Stomach Neoplasms/genetics ; Heterografts ; Prognosis ; Carcinogenesis ; Gene Expression Profiling ; Cell Transformation, Neoplastic ; Disease Models, Animal ; Extracellular Matrix ; Tumor Microenvironment/genetics
    Language English
    Publishing date 2023-09-19
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2118570-0
    ISSN 1479-5876 ; 1479-5876
    ISSN (online) 1479-5876
    ISSN 1479-5876
    DOI 10.1186/s12967-023-04473-0
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  10. Article: Genomic characterization of peritoneal lavage cytology-positive gastric cancer.

    Wu, Zhouqiao / Gu, Tingfei / Xiong, Changxian / Shi, Jinyao / Wang, Jingpu / Guo, Ting / Xing, Xiaofang / Pang, Fei / He, Ning / Miao, Rulin / Shan, Fei / Zhou, Yuan / Li, Ziyu / Ji, Jiafu

    Chinese journal of cancer research = Chung-kuo yen cheng yen chiu

    2024  Volume 36, Issue 1, Page(s) 66–77

    Abstract: Objective: Positive peritoneal lavege cytology (CY1) gastric cancer is featured by dismal prognosis, with high risks of peritoneal metastasis. However, there is a lack of evidence on pathogenic mechanism and signature of CY1 and there is a continuous ... ...

    Abstract Objective: Positive peritoneal lavege cytology (CY1) gastric cancer is featured by dismal prognosis, with high risks of peritoneal metastasis. However, there is a lack of evidence on pathogenic mechanism and signature of CY1 and there is a continuous debate on CY1 therapy. Therefore, exploring the mechanism of CY1 is crucial for treatment strategies and targets for CY1 gastric cancer.
    Methods: In order to figure out specific driver genes and marker genes of CY1 gastric cancer, and ultimately offer clues for potential marker and risk assessment of CY1, 17 cytology-positive gastric cancer patients and 31 matched cytology-negative gastric cancer patients were enrolled in this study. The enrollment criteria were based on the results of diagnostic laparoscopy staging and cytology inspection of exfoliated cells. Whole exome sequencing was then performed on tumor samples to evaluate genomic characterization of cytology-positive gastric cancer.
    Results: Least absolute shrinkage and selection operator (LASSO) algorithm identified 43 cytology-positive marker genes, while MutSigCV identified 42 cytology-positive specific driver genes.
    Conclusions: There might not be distinct differences between CY1 and CY0, and CY1 might represent the progression of CY0 gastric cancer rather than constituting an independent subtype. This genomic analysis will thus provide key molecular insights into CY1, which may have a direct effect on treatment recommendations for CY1 and CY0 patients, and provides opportunities for genome-guided clinical trials and drug development.
    Language English
    Publishing date 2024-02-22
    Publishing country China
    Document type Journal Article
    ZDB-ID 1067584-x
    ISSN 1993-0631 ; 1000-9604
    ISSN (online) 1993-0631
    ISSN 1000-9604
    DOI 10.21147/j.issn.1000-9604.2024.01.07
    Database MEDical Literature Analysis and Retrieval System OnLINE

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