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Pelzer JO, Leumann E, Schwöbel MG.Pelzer JO, et al. Among authors: schwobel mg.Eur J Pediatr Surg. 1994 Aug;4(4):196-8. doi: 10.1055/s-2008-1066102.Eur J Pediatr Surg. 1994.PMID: 7981163
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