- Correspondence to Dr Marina Carvalho de Moraes Barros, Division of Neonatal Medicine, Department of Pediatrics, Escola Paulista de Medicina, Universidade Federal de São Paulo (EPM-Unifesp), 358, São Paulo, SP 05448-100, Brazil;
- Received November 7, 2013
- Revised May 15, 2014
- Accepted May 20, 2014
- First published June 6, 2014.
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