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Open-Access Journal
Editorial
Opinion Review
Marzia Franceschilli, Sara Di Carlo, Danilo Vinci, Bruno Sensi, Leandro Siragusa, Vittoria Bellato, Roberto Caronna, Piero Rossi, Giuseppe Cavallaro, Andrea Guida, Simone Sibio 
World J Clin Cases 9(25):7297-7305. Published online Sep 6, 2021. doi: 10.12998/wjcc.v9.i25.7297
Minireviews
Retrospective Study
Giulia Bolasco, Teresa Capriati, Chiara Grimaldi, Lidia Monti, Maria Debora De Pasquale, Ippolita Patrizia Patera, Marco Spada, Giuseppe Maggiore, Antonella Diamanti 
World J Clin Cases 9(25):7340-7349. Published online Sep 6, 2021. doi: 10.12998/wjcc.v9.i25.7340
Observational Study
Randomized Controlled Trial
Systematic Reviews
Erlene Roberta Ribeiro dos Santos, Jose Lucas Silva de Paula, Felipe Maia Tardieux, Vânia Nazaré Costa-e-Silva, Amos Lal, Antonio Flaudiano Bem Leite 
World J Clin Cases 9(25):7433-7444. Published online Sep 6, 2021. doi: 10.12998/wjcc.v9.i25.7433
Case Report
Vincenzo Ezio Santobuono, Andrea Igoren Guaricci, Eugenio Carulli, Nicola Bozza, Martino Pepe, Alfredo Ranauro, Carlotta Ranieri, Maria Cristina Carella, Francesco Loizzi, Nicoletta Resta, Stefano Favale, Cinzia Forleo 
World J Clin Cases 9(25):7472-7477. Published online Sep 6, 2021. doi: 10.12998/wjcc.v9.i25.7472
Yi-Kun Jiang, Yan-Bing Wang, Chuan-Gang Peng, Ji Qu, Dan-Kai Wu 
World J Clin Cases 9(25):7478-7483. Published online Sep 6, 2021. doi: 10.12998/wjcc.v9.i25.7478
Suo-Yuan Li, Ye Miao, Liang Cheng, Ye-Feng Wang, Zhi-Qiang Li, Yu-Bo Liu, Tian-Ming Zou, Jun Shen 
World J Clin Cases 9(25):7535-7541. Published online Sep 6, 2021. doi: 10.12998/wjcc.v9.i25.7535
Xian-Lan Xiang, Peng Cai, Jun-Gang Zhao, Hao-Wei Zhao, Yu-Liang Jiang, Meng-Lei Zhu, Qi Wang, Rui-Yun Zhang, Zhen-Wei Zhu, Jian-Lei Chen, Zhi-Cheng Gu, Jie Zhu 
World J Clin Cases 9(25):7542-7550. Published online Sep 6, 2021. doi: 10.12998/wjcc.v9.i25.7542