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Open-Access Journal
Minireviews
Fabrício Freire de Melo, Thiago de Carvalho Milet, Jaqueline Silva Caires, Paulo Victor Dias Versiani, Breno Bittencourt de Brito, Filipe Antônio França da Silva, Glauber Rocha Lima Araújo, Hanna Santos Marques 
World J Clin Cases 9(10):2160-2169. Published online Apr 6, 2021. doi: 10.12998/wjcc.v9.i10.2160
Case Control Study
Retrospective Study
Observational Study
Hu Zhang, Jing Liu, Song-Lin Ma, Man-Lin Huang, Yan Fan, Min Song, Jing Yang, Xiao-Xia Zhang, Qi-Long Song, Jing Gong, Ping-Xiao Huang, Heng Zhang 
World J Clin Cases 9(10):2238-2246. Published online Apr 6, 2021. doi: 10.12998/wjcc.v9.i10.2238
Prospective Study
Case Report
Mei-Nan He, Shan-Chao Zhao, Ji-Min Li, Lu-Lu Tong, Xin-Zhao Fan, Yao-Ming Xue, Xiao-Hong Lin, Ying Cao 
World J Clin Cases 9(10):2259-2267. Published online Apr 6, 2021. doi: 10.12998/wjcc.v9.i10.2259
Yu-Hong Ma, Tatsuya Yamaguchi, Tomoki Yasumura, Toru Kuno, Shoji Kobayashi, Takashi Yoshida, Takeshi Ishida, Yasuaki Ishida, Shinya Takaoka, Jiang-Lin Fan, Nobuyuki Enomoto 
World J Clin Cases 9(10):2400-2408. Published online Apr 6, 2021. doi: 10.12998/wjcc.v9.i10.2400