1. Shoklo Malaria Research Unit, Mae Sot, Tak, Thailand
2. Department of Perinatology & Gynecology, University Medical Center Utrecht, Utrecht, The Netherlands
3. Nuffield Department of Obstetrics & Gynaecology, University of Oxford, Oxford, UK
4. Mahidol‐Oxford Tropical Medicine Research Unit (MORU), Mahidol University, Bangkok, Thailand
5. Centre for Tropical Medicine, University of Oxford, Oxford, UK