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van der Horst N, Smits DW, Petersen J, Goedhart EA, Backx FJ.van der Horst N, et al. Among authors: backx fj.Am J Sports Med. 2015 Jun;43(6):1316-23. doi: 10.1177/0363546515574057. Epub 2015 Mar 20.Am J Sports Med. 2015.PMID: 25794868Clinical Trial.
van Beijsterveldt AM, Krist MR, Schmikli SL, Stubbe JH, de Wit GA, Inklaar H, van de Port IG, Backx FJ.van Beijsterveldt AM, et al. Among authors: backx fj.Inj Prev. 2011 Feb;17(1):e2. doi: 10.1136/ip.2010.027979. Epub 2010 Dec 21.Inj Prev. 2011.PMID: 21177664Free PMC article.Clinical Trial.
Kemler E, van de Port I, Backx F, van Dijk CN.Kemler E, et al.Sports Med. 2011 Mar 1;41(3):185-97. doi: 10.2165/11584370-000000000-00000.Sports Med. 2011.PMID: 21395362Review.