[1] Norwegian Inst Publ Hlth, Div Hlth Serv, Global Hlth Cluster, POB 222, Oslo, Norway
[2] Albert Einstein Coll Med, Global Hlth Ctr, 1300 Morris Pk Ave Block 505, Bronx, NY 10461 USA
[3] Univ Bergen, Ctr Intervent Sci Maternal & Child Hlth CISMAC, Bergen, Norway
[4] Makerere Univ, Sch Publ Hlth, New Mulago Gate Rd, Kampala, Uganda
[5] Western Norway Univ Appl Sci, Dept Hlth & Functioning, Bergen, Norway