Singapore Eye Research Institute (S.M., S.-M.S.), Singapore; Department of Ophthalmology (A.N.K.), Duke University, Durham, NC; National University of Singapore (S.-M.S.), Singapore; and Saw Swee Hock School of Public Health (S.-M.S.), Singapore.
The journal of maternal-fetal & neonatal medicine : the official journal of the European Association of Perinatal Medicine, the Federation of Asia and Oceania Perinatal Societies, the International Society of Perinatal Obstetricians