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Guler E, Schmid JP, Wiedemar L, Saner H, Schnyder U, von Känel R.Guler E, et al. Among authors: von kanel r.Clin Cardiol. 2009 Mar;32(3):125-9. doi: 10.1002/clc.20384.Clin Cardiol. 2009.PMID: 19301284Free PMC article.