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König CW, Pereira PL, Trübenbach J, Fritz J, Duda SH, Schick F, Claussen CD.König CW, et al. Among authors: fritz j.AJR Am J Roentgenol. 2003 Jun;180(6):1567-70. doi: 10.2214/ajr.180.6.1801567.AJR Am J Roentgenol. 2003.PMID: 12760921
Pereira PL, Fritz J, Koenig CW, Maurer F, Boehm P, Badke A, Mueller-Schimpfle M, Bitzer M, Claussen CD.Pereira PL, et al. Among authors: fritz j.J Bone Joint Surg Am. 2004 Aug;86(8):1761-7. doi: 10.2106/00004623-200408000-00021.J Bone Joint Surg Am. 2004.PMID: 15292425
Günaydin I, Pereira PL, Fritz J, König C, Kötter I.Günaydin I, et al. Among authors: fritz j.Rheumatol Int. 2006 Mar;26(5):396-400. doi: 10.1007/s00296-005-0008-0. Epub 2005 Jul 12.Rheumatol Int. 2006.PMID: 16010559Clinical Trial.
Clasen S, Boss A, Schmidt D, Fritz J, Schraml C, Claussen CD, Pereira PL.Clasen S, et al. Among authors: fritz j.Eur J Radiol. 2006 Aug;59(2):140-8. doi: 10.1016/j.ejrad.2006.04.006. Epub 2006 May 23.Eur J Radiol. 2006.PMID: 16716553Review.
Clasen S, Geng A, Herberts T, Boss A, Schmidt D, Schraml C, Fritz J, Kröber SM, Claussen CD, Pereira PL.Clasen S, et al. Among authors: fritz j.Rofo. 2007 Mar;179(3):282-8. doi: 10.1055/s-2006-927360. Epub 2007 Feb 15.Rofo. 2007.PMID: 17301932German.