1. Perry H, Zulliger R, Rogers M. Community health workers in low-, middle-, and high-income countries: an overview of their history, recent evolution, and current effectiveness. Annu Rev Public Health. 2014;35:399–421.
2. Tulenko K, Mogedal S, Afzal MM, Frymus D, Oshin A, Pate M, et al. Community health workers for universal health-care coverage: from fragmentation to synergy. Bull World Health Organ. 2013;91:847–52.
3. Dahn B, Woldemariam A, Perry H, Maeda A, von Glahn D, Panjabi R, et al. Strengthening primary health care through community health workers: investment case and financing recommendations. Geneva: Office of UN Secretary General’s Special Envoy for Financing the Health Millennium Development Goals and for Malaria; 2015.
4. Macinko J, Harris MJ. Brazil’s family health strategy — delivering community-based primary care in a universal health system. N Engl J Med. 2015;372:2177–81.
5. Perry H, Crigler L, Hodgins S. Developing and strengthening community health worker programs at scale: a reference guide and case studies for program managers and policy makers. Baltimore: Maternal and Child Health Integrated Program, USAID; 2014.