1. From the London School of Hygiene & Tropical Medicine, London, UK (D.A.L., V.M.); the Centre for Health Equity Studies, Stockholm University/Karolinska Institute, Stockholm, Sweden (I.K.); the Department of Women’s and Children’s Health, Uppsala University Hospital, Uppsala, Sweden (T.T., G.L.); and the Department of Public Health and Caring Sciences, Uppsala University, Uppsala, Sweden (R.M., L.B., H.L.).