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Gerber M, Immer FF, Do DD, Carrel T, Schmidli J.Gerber M, et al. Among authors: schmidli j.Swiss Med Wkly. 2003 Jan 25;133(3-4):44-51. doi: 10.4414/smw.2003.10076.Swiss Med Wkly. 2003.PMID: 12596086Free article.