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Open-Access Journal
Minireviews
Peter Spazzapan, Roman Bosnjak, Borut Prestor, Tomaz Velnar 
World J Clin Cases 9(4):764-773. Published online Feb 6, 2021. doi: 10.12998/wjcc.v9.i4.764
Case Control Study
Retrospective Study
Clinical Trials Study
Hui-Wen Wang, Xiao-Jing Li, Shi-Jie Li, Jun-Rong Lu, Dong-Feng He 
World J Clin Cases 9(4):801-811. Published online Feb 6, 2021. doi: 10.12998/wjcc.v9.i4.801
Observational Study
Xia Wu, Xiao-Bo Liu, Ting Liu, Wen Tian, Yu-Jiao Sun 
World J Clin Cases 9(4):812-821. Published online Feb 6, 2021. doi: 10.12998/wjcc.v9.i4.812
Case Report
Karolina Daunaraite, Valentinas Uvarovas, Donatas Ulevicius, Tomas Sveikata, Giedrius Petryla, Jaunius Kurtinaitis, Igoris Satkauskas 
World J Clin Cases 9(4):830-837. Published online Feb 6, 2021. doi: 10.12998/wjcc.v9.i4.830
Yi-Lun Hsieh, Wen-Hung Hsu, Ching-Chun Lee, Chun-Chieh Wu, Deng-Chyang Wu, Jeng-Yih Wu 
World J Clin Cases 9(4):838-846. Published online Feb 6, 2021. doi: 10.12998/wjcc.v9.i4.838
Tetsu Yamamoto, Ryoji Hyakudomi, Kiyoe Takai, Takahito Taniura, Yuki Uchida, Kazunari Ishitobi, Noriyuki Hirahara, Yoshitsugu Tajima 
World J Clin Cases 9(4):847-853. Published online Feb 6, 2021. doi: 10.12998/wjcc.v9.i4.847
Katsuhiro Hayashi, Norio Yamamoto, Akihiko Takeuchi, Shinji Miwa, Kentaro Igarashi, Yoshihiro Araki, Hirotaka Yonezawa, Sei Morinaga, Yohei Asano, Hiroyuki Tsuchiya 
World J Clin Cases 9(4):854-863. Published online Feb 6, 2021. doi: 10.12998/wjcc.v9.i4.854
Federica Vernuccio, Stephanie Austin, Mathias Meyer, Cynthia D Guy, Priya S Kishnani, Daniele Marin 
World J Clin Cases 9(4):871-877. Published online Feb 6, 2021. doi: 10.12998/wjcc.v9.i4.871
Zhong-Bin Han, Ju Wu, Jing Liu, He-Ming Li, Kai Guo, Tong Sun 
World J Clin Cases 9(4):886-897. Published online Feb 6, 2021. doi: 10.12998/wjcc.v9.i4.886
Yao Liu, Jin Dai, Xiao-Dong Wang, Zhi-Xiong Guo, Lun-Qing Zhu, Yun-Fang Zhen 
World J Clin Cases 9(4):898-903. Published online Feb 6, 2021. doi: 10.12998/wjcc.v9.i4.898
Xue-Ling Fu, Fa-Ke Liu, Ming-Dong Li, Chang-Xue Wu 
World J Clin Cases 9(4):904-911. Published online Feb 6, 2021. doi: 10.12998/wjcc.v9.i4.904
Yu Zhang, Di Wu, Bo Zhao, Xue-Liang Tian, Tian-Cheng Yao, Feng Li, Wei-Fang Liu, Ai-Ping Shi 
World J Clin Cases 9(4):919-926. Published online Feb 6, 2021. doi: 10.12998/wjcc.v9.i4.919
Fu-Sheng Wang, Khurram Shahzad, Wei-Guo Zhang, Jie Li, Kang Tian 
World J Clin Cases 9(4):927-934. Published online Feb 6, 2021. doi: 10.12998/wjcc.v9.i4.927
Li-Na Zhou, Shao-Shao Dong, Sheng-Ze Zhang, Wen Huang 
World J Clin Cases 9(4):943-950. Published online Feb 6, 2021. doi: 10.12998/wjcc.v9.i4.943
Yang Li, Jian-Lin Zuo, Jin-Shuo Tang, Xian-Yue Shen, Sheng-Hao Xu, Jian-Lin Xiao 
World J Clin Cases 9(4):976-982. Published online Feb 6, 2021. doi: 10.12998/wjcc.v9.i4.976
Shu-Wen Dong, Duo-Duo Di, Guan-Xun Cheng 
World J Clin Cases 9(4):992-998. Published online Feb 6, 2021. doi: 10.12998/wjcc.v9.i4.992
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