1. Amref Health Africa in Ethiopia, Bole Sub City, Woreda 03, P.O. Box 20855, Addis Ababa 1000, Ethiopia
2. Faculty of Health, University of Canberra, 11 Kirinari St, Bruce, ACT 2617, Australia
3. Melbourne School of Population & Global Health, Melbourne University, Carlton, VIC 3053, Australia
4. Amref Health Africa in Italy Via (St.) Volta n.10, Pregnana Milanese (Milan), 00198 Roma, Italy
5. College of Agriculture and Natural Science, Debre Berhan University, Debre Berhan P.O. Box 445, Ethiopia