1. Micronutrient Initiative; Research and Evaluation; 180 Elgin Street, Suite 1000 Ottawa ON Canada K2P 2K3
2. Cornell University; Division of Nutritional Sciences; Ithaca New York USA
3. Norwegian Knowledge Centre for the Health Services; Health Economics and Drugs Unit; PO Box 7004 St Olavs Plass Oslo Norway N-0130
4. Universidad de Antioquia, UdeA; Grupo de Investigación en Alimentación y Nutrición Humana; Carrera 53 # 61-30, Laboratorio 413 Medellin Antioquia Colombia 050010
5. World Health Organization; Evidence and Programme Guidance, Department of Nutrition for Health and Development; 20 Avenue Appia Geneva GE Switzerland 1211