The Maternal Mortality Estimation Inter-Agency Group (MMEIG), together with Professor John Wilmoth and Alison Gemmill, of the University of California at Berkeley, United States of America (USA), collaborated in developing these maternal mortality estimates. The MMEIG consists of the following individuals, listed in alphabetical order: Mohamed Ali of the World Health Organization (WHO); Ties Boerma of WHO; Doris Chou of WHO; Sara Hertog of the United Nations Population Division (UNPD); Edilberto Loaiza of the United Nations Population Fund (UNFPA); Mie Inoue of WHO; Colin Mathers of WHO; Michael Mbizvo of WHO; Samuel Mills of The World Bank, Washington, DC, USA; Holly Newby of the United Nations Children’s Fund.