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Open-Access Journal
Opinion Review
Man-Ling Deng, Yong-Jun Chen, Mei-Ling Yang, Yi-Wen Liu, Hui Chen, Xiao-Qing Tang, Xue-Feng Yang 
World J Clin Cases 9(15):3487-3497. Published online May 26, 2021. doi: 10.12998/wjcc.v9.i15.3487
Minireviews
Bei-Bei Fu, Jian-Nan Zhao, Shuo-Dong Wu, Ying Fan 
World J Clin Cases 9(15):3498-3505. Published online May 26, 2021. doi: 10.12998/wjcc.v9.i15.3498
Meng Zhang, Qun-De Chen, Hai-Xia Xu, Yu-Meng Xu, Hong-Jin Chen, Bo-Lin Yang 
World J Clin Cases 9(15):3506-3516. Published online May 26, 2021. doi: 10.12998/wjcc.v9.i15.3506
Alessandro Fancellu, Valeria Sanna, Fabrizio Scognamillo, Claudio F Feo, Gianpaolo Vidili, Giuseppe Nigri, Alberto Porcu 
World J Clin Cases 9(15):3517-3530. Published online May 26, 2021. doi: 10.12998/wjcc.v9.i15.3517
Retrospective Cohort Study
Bin Xiong, Li-Min He, Yuan-Yuan Qin, Hu Du, Zhu Zhan, Yi-Hong Zhou, Yao-Kai Chen, An Zhang 
World J Clin Cases 9(15):3546-3558. Published online May 26, 2021. doi: 10.12998/wjcc.v9.i15.3546
Retrospective Study
Ya-Li Wang, Yun-Qing Liu, Hua Ni, Xin-Lei Zhang, Li Ding, Fei Tong, Hong-Ye Chen, Xin-Hua Zhang, Ming-Jian Kong 
World J Clin Cases 9(15):3567-3575. Published online May 26, 2021. doi: 10.12998/wjcc.v9.i15.3567
Observational Study
Meta-Analysis
Case Report
Sheng-Yang Zhang, Hui-Hui Xu, Miao-Miao Xiao, Jing-Jing Zhang, Qiang Mao, Bang-Jian He, Pei-Jian Tong 
World J Clin Cases 9(15):3623-3630. Published online May 26, 2021. doi: 10.12998/wjcc.v9.i15.3623
Piotr Czubkowski, Richard J Thompson, Irena Jankowska, A S Knisely, Milton Finegold, Pamela Parsons, Joanna Cielecka-Kuszyk, Sandra Strautnieks, Joanna Pawłowska, Laura N Bull 
World J Clin Cases 9(15):3631-3636. Published online May 26, 2021. doi: 10.12998/wjcc.v9.i15.3631
Michiel Frederik Vande Kerckhove, Vincent Fiere, Thais Dutra Vieira, Sami Bahroun, Marc Szadkowski, Henri d'Astorg 
World J Clin Cases 9(15):3637-3643. Published online May 26, 2021. doi: 10.12998/wjcc.v9.i15.3637
Li-Hong Tian, Zhi-Gao Dong, Xu-Yan Chen, Lian-Jiang Huang, Ping-Ping Xiao 
World J Clin Cases 9(15):3649-3654. Published online May 26, 2021. doi: 10.12998/wjcc.v9.i15.3649
Ping Xia, Yan-Hong Li, Zhong Liu, Xu Zhang, Qian Jiang, Xiao-Yong Zhou, Wei Su 
World J Clin Cases 9(15):3655-3661. Published online May 26, 2021. doi: 10.12998/wjcc.v9.i15.3655
Jian Yang, Yu-Chen Tang, Ni Yin, Wei Liu, Zhi-Fei Cao, Xi Li, Xiao Zou, Zi-Xiang Zhang, Jian Zhou 
World J Clin Cases 9(15):3668-3674. Published online May 26, 2021. doi: 10.12998/wjcc.v9.i15.3668
Sang Hoon Lee, Dong Ryeol Ryu, Sung Joon Lee, Sung Chul Park, Byung Ryul Cho, Seung Koo Lee, Sang Ji Choi, Hyun Seok Cho 
World J Clin Cases 9(15):3689-3695. Published online May 26, 2021. doi: 10.12998/wjcc.v9.i15.3689
Wen-Peng Huang, Li-Na Zhu, Rui Li, Li-Ming Li, Jian-Bo Gao 
World J Clin Cases 9(15):3704-3710. Published online May 26, 2021. doi: 10.12998/wjcc.v9.i15.3704
Paulina F Toledo, Zoltan Berger, Laura Carreño, Gonzalo Cardenas, Jaime Castillo, Omar Orellana 
World J Clin Cases 9(15):3716-3725. Published online May 26, 2021. doi: 10.12998/wjcc.v9.i15.3716
Naoki Shijubou, Toshiyuki Sumi, Koki Kamada, Takeyuki Sawai, Yuichi Yamada, Tatsuru Ikeda, Hisashi Nakata, Yuji Mori, Hirofumi Chiba 
World J Clin Cases 9(15):3726-3732. Published online May 26, 2021. doi: 10.12998/wjcc.v9.i15.3726
Guang-Ping Liu, Ji-Gang Li, Xiao Gong, Jian-Min Li 
World J Clin Cases 9(15):3733-3740. Published online May 26, 2021. doi: 10.12998/wjcc.v9.i15.3733
Hao-Yu Wu, Yi-Wei Cao, Tian-Jiao Gao, Jian-Li Fu, Lei Liang 
World J Clin Cases 9(15):3752-3757. Published online May 26, 2021. doi: 10.12998/wjcc.v9.i15.3752
Xue-Li Ding, Xiao-Yan Yin, Ya-Nan Yu, Yun-Qing Chen, Wei-Wei Fu, Hua Liu 
World J Clin Cases 9(15):3758-3764. Published online May 26, 2021. doi: 10.12998/wjcc.v9.i15.3758
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