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Open-Access Journal
Case Control Study
Amir Sobhani Eraghi, Mikaiel Hajializade, Ehsan Shekarchizadeh, Shadi Abdollahi Kordkandi 
World J Orthop 11(4):206-212. Published online Apr 18, 2020. doi: 10.5312/wjo.v11.i4.206
Retrospective Cohort Study
Aditya Borakati, Asad Ali, Chetana Nagaraj, Srinivas Gadikoppula, Michael Kurer 
World J Orthop 11(4):213-221. Published online Apr 18, 2020. doi: 10.5312/wjo.v11.i4.213
Retrospective Study
Ignacio Rehbein, Johan von Heideken, María Elena Pérez, Alejandro Cúneo, Ignacio Pagano, Viviana Teske 
World J Orthop 11(4):222-231. Published online Apr 18, 2020. doi: 10.5312/wjo.v11.i4.222
Georgios I Drosos, Stylianos Tottas, Ioannis Kougioumtzis, Konstantinos Tilkeridis, Christos Chatzipapas, Athanasios Ververidis 
World J Orthop 11(4):232-242. Published online Apr 18, 2020. doi: 10.5312/wjo.v11.i4.232
Prospective Study
Christiaan JA van Bergen, Rik IK Weber, Tim Kraal, Gino MMJ Kerkhoffs, Daniël Haverkamp 
World J Orthop 11(4):243-251. Published online Apr 18, 2020. doi: 10.5312/wjo.v11.i4.243
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