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Open-Access Journal
Opinion Review
Yu-Chi Zhao, Ya-Na Li, Rong-Rong Li, Xu Luo, Bo Wang 
World J Meta-Anal 9(2):101-107. Published online Apr 28, 2021. doi: 10.13105/wjma.v9.i2.101
Review
Marwan SM Al-Nimer 
World J Meta-Anal 9(2):108-127. Published online Apr 28, 2021. doi: 10.13105/wjma.v9.i2.108
Minireviews
Jenita Jona James, Oday Al-Dadah 
World J Meta-Anal 9(2):128-138. Published online Apr 28, 2021. doi: 10.13105/wjma.v9.i2.128
Vikrant Parihar, Julia Sopena-Falco, Chris Steele, Daniela Crosnoi, Kevin Van Der Merwe, Paul Armstrong, Olga Fagan 
World J Meta-Anal 9(2):139-152. Published online Apr 28, 2021. doi: 10.13105/wjma.v9.i2.139
Shirou Matsumoto, Tomomi Nakamura, Fusa Nagamatsu, Jun Kido, Rieko Sakamoto, Kimotoshi Nakamura 
World J Meta-Anal 9(2):153-163. Published online Apr 28, 2021. doi: 10.13105/wjma.v9.i2.153
Mohammed E Grawish, Mahmoud A Saeed, Nessma Sultan, Ben A Scheven 
World J Meta-Anal 9(2):176-192. Published online Apr 28, 2021. doi: 10.13105/wjma.v9.i2.176
Systematic Reviews
Meta-Analysis
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