1. From the George Institute for International Health (S.C., T.N., R.H., A.-P.K., G.D.B., M.W., B.N., J.C.), University of Sydney, Sydney, Australia; Department of Public Health (S.C.), Avicenne Hospital, University of Paris 13, Bobigny, France; Medical Research Council (G.D.B.), Social and Public Health Sciences Unit, Glasgow, United Kingdom; Julius Centre for Health Sciences and Primary Care (D.E.G.), University Medical Centre Utrecht, Utrecht, The Netherlands.