- Correspondence to Dr Riccardo E Pfister, Division of Neonatology and Paediatric Intensive Care, Children's University Hospital of Geneva and University of Geneva, 6 Rue Willy Donzé, Geneva CH-1211, Switzerland;
- Received March 11, 2015
- Revised March 8, 2016
- Accepted March 9, 2016
- First published April 8, 2016.
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