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Open-Access Journal
Review
Luigi Murena, Massimo Max Morandi, Marko Tomic, Federico Roman, Roberto Fattori, Guido Maritan, Andrea Sborgia, Gianluca Canton 
World J Orthop 12(5):254-269. Published online May 18, 2021. doi: 10.5312/wjo.v12.i5.254
Minireviews
Francesco Ceccarelli, Silvio Tocco, Francesco Pagnini, Rocco Perotta, Fabrizio Tacci, Alberto Longhi, Daniele Casalini, Massimo De Filippo, Francesco Pogliacomi 
World J Orthop 12(5):270-291. Published online May 18, 2021. doi: 10.5312/wjo.v12.i5.270
Retrospective Study
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Systematic Reviews
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