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McCrone P, Chisholm D, Knapp M, Hughes R, Comi G, Dalakas MC, Illa I, Kilindireas C, Nobile-Orazio E, Swan A, Van den Bergh P, Willison HJ; INCAT Study Group.McCrone P, et al. Among authors: knapp m.Eur J Neurol. 2003 Nov;10(6):687-94. doi: 10.1046/j.1351-5101.2003.00701.x.Eur J Neurol. 2003.PMID: 14641514Clinical Trial.
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Patel A, Knapp M, Evans A, Perez I, Kalra L.Patel A, et al. Among authors: knapp m.BMJ. 2004 May 8;328(7448):1102. doi: 10.1136/bmj.328.7448.1102.BMJ. 2004.PMID: 15130978Free PMC article.Clinical Trial.
Sleed M, Eccleston C, Beecham J, Knapp M, Jordan A.Sleed M, et al. Among authors: knapp m.Pain. 2005 Dec 15;119(1-3):183-190. doi: 10.1016/j.pain.2005.09.028. Epub 2005 Nov 16.Pain. 2005.PMID: 16297552Clinical Trial.