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Open-Access Journal
Review
Maria Bourazani, Eleni Asimakopoulou, Chrysseida Magklari, Nikolaos Fyrfiris, Ioannis Tsirikas, Giakoumis Diakoumis, Martha Kelesi, Georgia Fasoi, Theodoros Kormas, Gunhild Lefaki 
World J Orthop 12(6):346-359. Published online Jun 18, 2021. doi: 10.5312/wjo.v12.i6.346
Minireviews
Francesco Castagnini, Filippo Caternicchia, Federico Biondi, Claudio Masetti, Cesare Faldini, Francesco Traina 
World J Orthop 12(6):376-385. Published online Jun 18, 2021. doi: 10.5312/wjo.v12.i6.376
Case Control Study
Retrospective Cohort Study
Retrospective Study
Nicholas C Schiller, Andrew J Sama, Amanda F Spielman, Chester J Donnally III, Benjamin I Schachner, Dhanur M Damodar, Christopher C Dodson, Michael G Ciccotti 
World J Orthop 12(6):412-422. Published online Jun 18, 2021. doi: 10.5312/wjo.v12.i6.412
Prospective Study
Systematic Reviews
Case Report