1. International Centre for Diarrhoeal Disease Research, Dhaka, Bangladesh.
2. College of Health Sciences, Addis Ababa University, Addis Ababa, Ethiopia.
3. London School of Hygiene and Tropical Medicine, London, England.
4. Centre for Health Research and Development of the Society for Applied Studies, New Delhi, India.
5. Aga Khan University, Karachi, Pakistan.
6. Ifakara Health Institute, Ifakara and Rufiji, United Republic of Tanzania.
7. Makerere University, Iganga/Mayuge Health and Demographic Surveillance Site, Iganga, Uganda.
8. Department of Maternal, Newborn, Child and Adolescent Health, World Health Organization, Avenue Appia 20, 1211 Geneva 27, Switzerland.