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Knirsch W, Kellenberger C, Dittrich S, Ewert P, Lewin M, Motz R, Nürnberg J, Kretschmar O; Working Group Interventional Cardiology of the German Association of Pediatric Cardiology.Knirsch W, et al. Among authors: motz r.Pediatr Cardiol. 2013 Mar;34(3):530-5. doi: 10.1007/s00246-012-0488-0. Epub 2012 Sep 9.Pediatr Cardiol. 2013.PMID: 22961345