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Open-Access Journal
Editorial
Kivanc Atesok, Peter MacDonald, Jeff Leiter, James Dubberley, Richard Satava, Ann VanHeest, Shepard Hurwitz, J Lawrence Marsh 
World J Orthop 8(4):290-294. Published online Apr 18, 2017. doi: 10.5312/wjo.v8.i4.290
Therapeutic Advances
Basic Study
Srinath Kamineni, Crystal R Norgren, Evan M Davidson, Ellora P Kamineni, Andrew S Deane 
World J Orthop 8(4):310-316. Published online Apr 18, 2017. doi: 10.5312/wjo.v8.i4.310
Case Control Study
Retrospective Study
Kazuhiro Hayashi, Masato Kako, Kentaro Suzuki, Keiko Hattori, Saori Fukuyasu, Koji Sato, Izumi Kadono, Tadahiro Sakai, Yukiharu Hasegawa, Yoshihiro Nishida 
World J Orthop 8(4):336-341. Published online Apr 18, 2017. doi: 10.5312/wjo.v8.i4.336
Clinical Trials Study
Max J Friedrich, Matthias D Wimmer, Jan Schmolders, Andreas C Strauss, Milena M Ploeger, Hendrik Kohlhof, Dieter C Wirtz, Sascha Gravius, Thomas M Randau 
World J Orthop 8(4):342-349. Published online Apr 18, 2017. doi: 10.5312/wjo.v8.i4.342
Observational Study
Systematic Reviews