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Freitag D, Koch A, Lawson McLean A, Kalff R, Walter J.Freitag D, et al. Among authors: kalff r.Mol Neurobiol. 2018 Jul;55(7):5787-5797. doi: 10.1007/s12035-017-0800-3. Epub 2017 Oct 27.Mol Neurobiol. 2018.PMID: 29079997
Walter J, Kuhn SA, Reichart R, Kalff R, Ewald C.Walter J, et al. Among authors: kalff r.Eur Spine J. 2010 Jun;19(6):1004-9. doi: 10.1007/s00586-009-1265-5. Epub 2010 Jan 13.Eur Spine J. 2010.PMID: 20069319Free PMC article.