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Barzel A, Ketels G, Stark A, Tetzlaff B, Daubmann A, Wegscheider K, van den Bussche H, Scherer M.Barzel A, et al.Lancet Neurol. 2015 Sep;14(9):893-902. doi: 10.1016/S1474-4422(15)00147-7. Epub 2015 Jul 28.Lancet Neurol. 2015.PMID: 26231624Clinical Trial.
Tetzlaff B, Barzel A, Stark A, Ketels G, Scherer M.Tetzlaff B, et al. Among authors: barzel a.Disabil Rehabil. 2020 Feb;42(4):545-551. doi: 10.1080/09638288.2018.1503732. Epub 2018 Nov 18.Disabil Rehabil. 2020.PMID: 30451030
Scherer M, Wollny A, Vollmar HC, Chenot JF, Baum E, Barzel A, Beyer M, Egidi G, Kaufmann-Kolle P, Mainz A, Popert U, Schmiemann G, Voigt K, Wagner HO, Szecsenyi J.Scherer M, et al. Among authors: barzel a.Z Evid Fortbild Qual Gesundhwes. 2013;107(1):74-86. doi: 10.1016/j.zefq.2012.11.016. Epub 2012 Dec 7.Z Evid Fortbild Qual Gesundhwes. 2013.PMID: 23415347German.
Stark A, Färber C, Tetzlaff B, Scherer M, Barzel A.Stark A, et al. Among authors: barzel a.Clin Rehabil. 2019 Sep;33(9):1527-1539. doi: 10.1177/0269215519848813. Epub 2019 May 20.Clin Rehabil. 2019.PMID: 31104476Free PMC article.Clinical Trial.
Barzel A, Liepert J, Haevernick K, Eisele M, Ketels G, Rijntjes M, van den Bussche H.Barzel A, et al.Restor Neurol Neurosci. 2009;27(6):673-80. doi: 10.3233/RNN-2009-0524.Restor Neurol Neurosci. 2009.PMID: 20042791Clinical Trial.