- Correspondence to Dr Simon Kargl, Department of Pediatric Surgery, Women's and Children's Hospital Linz, Krankenhausstraße 26-30, Linz A-4020, Austria;
- Received 6 December 2012
- Revised 15 January 2013
- Accepted 23 January 2013
- Published in print 1 February 2013.
- Published online 16 February 2013.
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