1. Instituto de Investigación Biosanitaria (ibs.GRANADA), Granada, Spain
2. CIBER en Epidemiología y Salud Pública (CIBERESP), Madrid, Spain
3. Radiology and Physical Medicine Department, University of Granada, Granada, Spain
4. Neonatal Intensive Care Unit, Virgen de las Nieves University Hospital, Granada, Spain
5. San Cecilio University Hospital, Granada, Spain