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Open-Access Journal
Editorial
Minireviews
Christiaan J A van Bergen, Annelies F van Bemmel, Tjarco D W Alta, Arthur van Noort 
World J Orthop 8(12):861-873. Published online Dec 18, 2017. doi: 10.5312/wjo.v8.i12.861
Basic Study
Takafumi Hiranaka, Takaaki Fujishiro, Yuichi Hida, Yosaku Shibata, Masanori Tsubosaka, Yuta Nakanishi, Kenjiro Okimura, Harunobu Uemoto 
World J Orthop 8(12):891-894. Published online Dec 18, 2017. doi: 10.5312/wjo.v8.i12.891
Case Control Study
Retrospective Cohort Study
Retrospective Study
Observational Study
Systematic Reviews
Case Report