1. Nuffield Department of Women's & Reproductive HealthUniversity of Oxford Oxford UK
2. Oxford Maternal and Perinatal Health Institute, Green Templeton CollegeUniversity of Oxford Oxford UK
3. Centre for Statistics in Medicine, Nuffield Department of Orthopaedics, Rheumatology & Musculoskeletal SciencesUniversity of Oxford Oxford UK
4. Programa de Pos‐Graduacao em EpidemiologiaUniversidade Federal de Pelotas Pelotas Brazil
5. Programa de Pos‐Graduacao em Saude e ComportamentoUniversidade Catolica de Pelotas Pelotas Brazil
6. Faculty of Health SciencesAga Khan University Nairobi Kenya
7. Developmental Pathways for Health Research Unit, Department of Pediatrics and Child HealthUniversity of Witwatersrand Johannesburg South Africa
8. Shoklo Malaria Research Unit, Mahidol‐Oxford Tropical Medicine Research Unit, Faculty of Tropical MedicineMahidol University Mae Sot Thailand
9. Department of Pediatrics and Child HealthAga Khan University Hospital Karachi Pakistan