[1] Curtin Univ, Curtin Sch Populat Hlth, Perth, Australia
[2] Univ Aberdeen, Inst Appl Hlth Sci, Aberdeen, Scotland
[3] HaSET Maternal & Child Hlth Res Program, Addis Ababa, Ethiopia
[4] Univ Technol, Fac Hlth, Australian Ctr Publ & Populat Hlth Res, Sydney, Australia
[5] Univ Cape Coast, Dept Populat & Hlth, Cape Coast, Ghana
[6] James Cook Univ, Coll Publ Hlth Med & Vet Sci, Townsville, Qld, Australia
[7] Univ Ottawa, Sch Int Dev & Global Studies, Ottawa, ON K1N 6N5, Canada
[8] Imperial Coll London, George Inst Global Hlth, London, England