Instituto Nacional de Salud Pública; WHO; IDRC; Task Force on Health Research for Development; Pan American Health Organization(National Institute of Public Health, Cuernavaca, MX, 1992)
Initiative pour les micronutriments; International Council for Control of Iodine Deficiency Disorders; UNICEF; WHO; Rollins School of Public Health(PAMM/IM/ICCIDD, Atlanta, GA, US, 1995)