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Rubinstein SM, Knol DL, Leboeuf-Yde C, de Koekkoek TE, Pfeifle CE, van Tulder MW.Rubinstein SM, et al. Among authors: knol dl.Spine (Phila Pa 1976). 2008 Jun 1;33(13):1451-8. doi: 10.1097/BRS.0b013e3181753cc9.Spine (Phila Pa 1976). 2008.PMID: 18520940Clinical Trial.
Rubinstein SM, Knol DL, Leboeuf-Yde C, van Tulder MW.Rubinstein SM, et al. Among authors: knol dl.Spine (Phila Pa 1976). 2008 Dec 1;33(25):E950-6. doi: 10.1097/BRS.0b013e3181891737.Spine (Phila Pa 1976). 2008.PMID: 19050572
Apeldoorn AT, Ostelo RW, van Helvoirt H, Fritz JM, Knol DL, van Tulder MW, de Vet HC.Apeldoorn AT, et al. Among authors: knol dl.Spine (Phila Pa 1976). 2012 Jul 15;37(16):1347-56. doi: 10.1097/BRS.0b013e31824d9f2b.Spine (Phila Pa 1976). 2012.PMID: 22333955Clinical Trial.
de Zoete A, Ostelo R, Knol DL, Algra PR, Wilmink JT, van Tulder MW; MRI Study Group.de Zoete A, et al. Among authors: knol dl.Spine (Phila Pa 1976). 2015 Jun 1;40(11):E653-60. doi: 10.1097/BRS.0000000000000896.Spine (Phila Pa 1976). 2015.PMID: 25803219