1. Save the Children in Hanoi, Viet Nam.
2. Department of Nutrition at the University of North Carolina in Chapel Hill, N.C.. USA.
3. Rollins School of Public Health, Emory University, Atlanta, Ga., USA, is now affiliated with Division of Nutritional Sciences, Cornell University in Ithaca, New York.
4. Department of International Health and Laura E. Caulfield is affiliated with the Bloomberg School of Public Health at Johns Hopkins University in Baltimore, Md., USA.
5. Save the Children Federation/US in Westport, Conn., USA.
6. Department of International Health, Rollins School of Public Health at Emory University in Atlanta, Ga., USA.