1 Nuffield Department of Women's and Reproductive Health, University of Oxford, Oxford OX3 9DU, UK; The George Institute for Global Health, London, UK. Electronic address: jane.hirst@wrh.ox.ac.uk.
2 Nuffield Department of Women's and Reproductive Health, University of Oxford, Oxford OX3 9DU, UK; The George Institute for Global Health, London, UK.
3 Department of Family Medicine, Department of Psychiatry and Behavioral Sciences, and Department of Global Health, University of Washington, Seattle, WA, USA.
4 CRONICAS Centro de Excelencia en Enfermedades Crónicas, Universidad Peruana Cayetano Heredia, Lima, Peru; The George Institute for Global Health, University of New South Wales, Sydney, NSW, Australia.
5 The George Institute for Global Health, University of New South Wales, Sydney, NSW, Australia; The George Institute for Global Health, New Delhi, India.