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Shaha M, Schmid-Büchi S, Abt J, Mathis-Jäggi F, Holdener E, Riederer E, Stoll HR, Fliedner M, Imhof L.Shaha M, et al. Among authors: imhof l.Pflege. 2008 Dec;21(6):385-403. doi: 10.1024/1012-5302.21.6.385.Pflege. 2008.PMID: 19048517German.