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Campo MM, Kerkhoffs GM, Sierevelt IN, Weeseman RR, Van der Vis HM, Albers GH.Campo MM, et al.Knee Surg Sports Traumatol Arthrosc. 2012 Feb;20(2):239-44. doi: 10.1007/s00167-011-1562-5. Epub 2011 Jun 1.Knee Surg Sports Traumatol Arthrosc. 2012.PMID: 21630047Free PMC article.Clinical Trial.