1. Department of Paediatrics, Rural Development Trust Children's Hospital, Bathalapalli, Andhra Pradesh, India
2. Department of Paediatric Emergency Transport, Sant Joan de Déu Hospital, Barcelona, Spain
3. Department of Paediatrics, Pediatria dels pirineus, la Seu d'Urgell, Spain
4. Department of Gynecology and Obstetrics, Rural Development Trust Children's Hospital, Bathalapalli, Andhra Pradesh, India
5. Department of Neonatology, Sant Joan de déu Hospital, Barcelona, Spain
6. Department of Gynecology, Hospital de la plana, Castellón, Spain
7. ISGlobal, Hospital Clínic-Universitat de Barcelona, Barcelona, Spain
8. Icrea, Barcelona, Spain
9. Centro de Investigação em Saúde de Manhiça, Maputo, Mozambique
10. Pediatrics Department, Hospital Sant Joan de Déu, Universitat de Barcelona, Esplugues, Barcelona, Spain
11. Consorcio de Investigación Biomédica en Red de Epidemiología y Salud Pública (CIBERESP), Madrid, Spain