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Hardmeier B, Braunschweig S, Cavallaro M, Roos M, Pauli-Magnus C, Giger M, Meier PJ, Fattinger K.Hardmeier B, et al.Swiss Med Wkly. 2004 Nov 13;134(45-46):664-70. doi: 10.4414/smw.2004.10801.Swiss Med Wkly. 2004.PMID: 15611888Free article.