BPG is committed to discovery and dissemination of knowledge
Open-Access Journal
Review
Retrospective Study
Clinical Trials Study
Observational Study
Gang Wang, Fang-Ying Ning, Jia-Heng Wang, Hai-Meng Yan, Hong-Wei Kong, Yu-Ting Zhang, Qiang Shen 
World J Clin Cases 7(24):4234-4244. Published online Dec 26, 2019. doi: 10.12998/wjcc.v7.i24.4234
Randomized Controlled Trial
Systematic Review
Case Report
Jakub Kristek, Michal Kudla, Jaroslav Chlupac, Robert Novotny, Tomas Mirejovsky, Libor Janousek, Jiri Fronek 
World J Clin Cases 7(24):4270-4276. Published online Dec 26, 2019. doi: 10.12998/wjcc.v7.i24.4270
Moon Young Oh, Ajung Chu, Jeong Hwan Park, Jong Yoon Lee, Eun Youn Roh, Young Jun Chai, Ki-Tae Hwang 
World J Clin Cases 7(24):4292-4298. Published online Dec 26, 2019. doi: 10.12998/wjcc.v7.i24.4292