1 School of Public Health, Yorkshire and the Humber Postgraduate Deanery, Leeds, UK [email protected].
2 Department of Integrated Health Services, World Health Organization, Geneva, Switzerland.
3 Alliance for Health Policy and Systems Research, Formerly, Department of Social Determinants of Health, World Health Organization, Geneva, Switzerland.
4 The Special Programme on Primary Health Care, Formerly, Quality of Care, Integrated Health Services, World Health Organization, Geneva, Switzerland.
5 Department for Gender, Equity and Human Rights, World Health Organization, Geneva, Switzerland.