¹Cochrane People, Health Systems and Public Health, Department of Health Sciences Ålesund, Norwegian University of Science and Technology (NTNU), Ålesund, Norway; Health Systems Research Unit, South African Medical Research Council, Cape Town, South Africa

²Partnership for Maternal, Newborn & Child Health (PMNCH), World Health Organization, Geneva, Switzerland

³UNDP/UNFPA/UNICEF/WHO/World Bank Special Programme of Research, Development and Research Training in Human Reproduction (HRP), Department of Sexual and Reproductive Health and Research, World Health Organization, Geneva, Switzerland

⁴Department of Maternal, Newborn, Child and Adolescent Health and Ageing, World Health Organization, Geneva, Switzerland