Affiliation: | 1. Department of Radiology, Aga Khan University Hospital, Nairobi, Kenya Oxford Maternal & Perinatal Health Institute (OMPHI), Green Templeton College and Nuffield Department of Obstetrics and Gynecology, John Radcliffe Hospital, University of Oxford, Oxford, UK;2. Oxford Maternal & Perinatal Health Institute (OMPHI), Green Templeton College and Nuffield Department of Obstetrics and Gynecology, John Radcliffe Hospital, University of Oxford, Oxford, UK;3. Oxford Maternal & Perinatal Health Institute (OMPHI), Green Templeton College and Nuffield Department of Obstetrics and Gynecology, John Radcliffe Hospital, University of Oxford, Oxford, UK Centre for Statistics in Medicine, University of Oxford, Botnar Research Center, Oxford, UK |