1 (350) | Bill and Melinda Gates Foundation | USA | ||
2 (383) | Battelle Memorial Institute * | USA | ||
3 (897) | Walter Reed Army Institute of Research * | USA | ||
4 (1166) | Family Health International * | USA | ||
5 (1208) | RAND Corp | USA | ||
6 (2067) | United Nations International Children's Emergency Fund, United States | USA | ||
7 (2335) | Population Council, USA | USA | ||