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Open-Access Journal
Review
Minireviews
Basic Study
Case Control Study
Retrospective Study
Clinical Trials Study
Observational Study
Prospective Study
Mortada HF El-Shabrawi, Laila M Sherief, Mostafa Yakoot, Naglaa M Kamal, Mohamed A Almalky, Manal M AbdElgawad, Aml A Mahfouz, Sherine Helmy, Enas M Kamal, Dina Attia, Hisham R El-Khayat 
World J Clin Cases 7(16):2247-2255. Published online Aug 26, 2019. doi: 10.12998/wjcc.v7.i16.2247
Randomized Controlled Trial
Systematic Reviews
Meta-Analysis
Case Report
Soledad Cameselle-García, José Luis Fírvida Pérez, María C Areses, Jesús Daniel Fernández de Castro, Juan Mosquera-Reboredo, Jesús García-Mata 
World J Clin Cases 7(16):2302-2308. Published online Aug 26, 2019. doi: 10.12998/wjcc.v7.i16.2302
Eray Eroglu, Murat Hayri Sipahioglu, Soner Senel, Sule Ketenci Ertas, Seyma Savas, Figen Ozturk, Ismail Kocyigit, Bulent Tokgoz, Oktay Oymak 
World J Clin Cases 7(16):2309-2315. Published online Aug 26, 2019. doi: 10.12998/wjcc.v7.i16.2309
Shu Li, Qing-Bian Ma, Ci Tian, Hong-Xia Ge, Yang Liang, Zhi-Guo Guo, Cheng-Duo Zhang, Bei Yao, Jia-Ning Geng, Fran Riley 
World J Clin Cases 7(16):2330-2335. Published online Aug 26, 2019. doi: 10.12998/wjcc.v7.i16.2330