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Open-Access Journal
Review
Filipe Antônio França da Silva, Breno Bittencourt de Brito, Fabrício Freire de Melo, Márcio Vasconcelos Oliveira, Natália Oliveira e Silva, Daiana Silva Lopes, Rebeca Gabrielle Almeida Maciel, Kathlen Coutinho de Souza, Gabriel Lima Correa Santos, Gabriel Reis Rocha, Samuel de Sousa Cruz, Lorena Sousa de Carvalho, Ronaldo Teixeira da Silva Júnior, Hanna Santos Marques, Maria Luísa Cordeiro Santos 
World J Clin Cases 9(28):8280-8294. Published online Oct 6, 2021. doi: 10.12998/wjcc.v9.i28.8280
Minireviews
Case Control Study
Retrospective Study
Hassan Ashktorab, Adeleye Folake, Antonio Pizuorno, Gholamreza Oskrochi, Philip Oppong-Twene, Nuri Tamanna, Maryam Mehdipour Dalivand, Lisa N Umeh, Esther S Moon, Abdoul Madjid Kone, Abigail Banson, Cassandra Federman, Edward Ramos, Eyitope Ola Awoyemi, Boubini Jones Wonni, Eric Otto, Guttu Maskalo, Alexandra Ogando Velez, Sheldon Rankine, Camelita Thrift, Chiamaka Ekwunazu, Derek Scholes, Lakshmi Gayathri Chirumamilla, Mohd Elmugtaba Ibrahim, Brianna Mitchell, Jillian Ross, Julencia Curtis, Rachel Kim, Chandler Gilliard, Joseph Mathew, Adeyinka Laiyemo, Angesum Kibreab, Edward Lee, Zaki Sherif, Babak Shokrani, Farshad Aduli, Hassan Brim 
World J Clin Cases 9(28):8374-8387. Published online Oct 6, 2021. doi: 10.12998/wjcc.v9.i28.8374
Observational Study
Hao-Fan Huang, Yong Liu, Jin-Xiu Li, Hui Dong, Shan Gao, Zheng-Yang Huang, Shou-Zhi Fu, Lu-Yu Yang, Hui-Zhi Lu, Liao-You Xia, Song Cao, Yi Gao, Xia-Xia Yu 
World J Clin Cases 9(28):8388-8403. Published online Oct 6, 2021. doi: 10.12998/wjcc.v9.i28.8388
Randomized Controlled Trial
Systematic Reviews
Case Report
Xiao-Le Zhang, Xiao-Bo Li, Fa-Feng Cheng, Shu-Ling Liu, Wen-Chao Ni, Fei-Fei Tang, Qing-Guo Wang, Xue-Qian Wang 
World J Clin Cases 9(28):8552-8556. Published online Oct 6, 2021. doi: 10.12998/wjcc.v9.i28.8552
Zhe Liu, Sha Lv, Shuang Wang, Sheng-Ming Qu, Gui-Yun Zhang, Yi-Tong Lin, Lei Yang, Fu-Qiu Li 
World J Clin Cases 9(28):8579-8586. Published online Oct 6, 2021. doi: 10.12998/wjcc.v9.i28.8579