- Correspondence to Dr Alejandro Avila-Alvarez, Department of Neonatology and Pediatrics, Complexo Hospitalario Universitario de A Coruña, A Coruña 15006, Spain;
- Received August 31, 2018
- Revised November 10, 2018
- Accepted November 22, 2018
- First published December 22, 2018.
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