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Open-Access Journal
Editorial
Review
Minireviews
Cheng-Xiang Guo, Xing Huang, Jian Xu, Xiao-Zhen Zhang, Yi-Nan Shen, Ting-Bo Liang, Xue-Li Bai 
World J Clin Cases 9(26):7643-7652. Published online Sep 16, 2021. doi: 10.12998/wjcc.v9.i26.7643
Basic Study
Case Control Study
Retrospective Cohort Study
Retrospective Study
Observational Study
Randomized Controlled Trial
Meta-Analysis
Case Report
Ljiljana Vučković, Aleksandra Klisic, Aleksandar Filipović, Mirko Popović, Tatjana Ćulafić 
World J Clin Cases 9(26):7805-7810. Published online Sep 16, 2021. doi: 10.12998/wjcc.v9.i26.7805
Yan Zhang, Yue-Yue Li, Han-Yang Yu, Xiao-Li Xie, Hui-Min Zhang, Fang He, Hong-Yang Li 
World J Clin Cases 9(26):7825-7832. Published online Sep 16, 2021. doi: 10.12998/wjcc.v9.i26.7825
Yan-Shan Zhang, Xiao-Jun Li, Yi-He Zhang, Ting-Chao Hu, Wei-Zuo Chen, Xin Pan, Hong-Yu Chai, Xin Wang, Yu-Ling Yang 
World J Clin Cases 9(26):7833-7839. Published online Sep 16, 2021. doi: 10.12998/wjcc.v9.i26.7833
Shou-Hao Wang, Tian-Chen Hui, Zhe-Wen Zhou, Cheng-An Xu, Wen-Hao Wu, Qing-Qing Wu, Wei Zheng, Qiao-Qiao Yin, Hong-Ying Pan 
World J Clin Cases 9(26):7923-7929. Published online Sep 16, 2021. doi: 10.12998/wjcc.v9.i26.7923
Shu-Lin Li, Jia-Wei Zhang, Yu-Qi Wu, Ke-Shi Lu, Pei Zhu, Xiang-Wei Wang 
World J Clin Cases 9(26):7954-7958. Published online Sep 16, 2021. doi: 10.12998/wjcc.v9.i26.7954
Letter to the Editor