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Open-Access Journal
Opinion Review
Case Control Study
Retrospective Cohort Study
Retrospective Study
Rajpreet Sahemey, Thomas S Moores, Hannah Meacher, Bishoy Youssef, Shehzaad Khan, Christopher R Evans 
World J Orthop 12(11):859-866. Published online Nov 18, 2021. doi: 10.5312/wjo.v12.i11.859
Clinical Trials Study
Observational Study
Evidence-Based Medicine
Nikhil Crain, Chun-Yuan Qiu, Stephen Moy, Shawn Thomas, Vu Thuy Nguyen, Mijin Lee-Brown, Diana Laplace, Jennifer Naughton, John Morkos, Vimal Desai 
World J Orthop 12(11):899-908. Published online Nov 18, 2021. doi: 10.5312/wjo.v12.i11.899
Systematic Reviews
Meta-Analysis
Case Report
Koichi Nakamura, Kunihiro Asanuma, Akira Shimamoto, Shinji Kaneda, Keisuke Yoshida, Yumi Matsuyama, Tomohito Hagi, Tomoki Nakamura, Motoshi Takao, Akihiro Sudo 
World J Orthop 12(11):945-953. Published online Nov 18, 2021. doi: 10.5312/wjo.v12.i11.945
Francesco Roberto Evola, Giovanni Francesco Di Fede, Santo Bonanno, Giuseppe Evola, Maria Elena Cucuzza 
World J Orthop 12(11):954-960. Published online Nov 18, 2021. doi: 10.5312/wjo.v12.i11.954