[1] INT CTR DIARRHOEAL DIS RES, DHAKA, BANGLADESH
[2] JOHNS HOPKINS UNIV, SCH MED, DEPT MED & GASTROENTEROL, DIV GEOG MED, BALTIMORE, MD 21205 USA
[3] JOHNS HOPKINS UNIV, SCH MED, DEPT PEDIAT, NUTR UNIT, BALTIMORE, MD 21205 USA
[4] JOHNS HOPKINS UNIV, SCH HYG & PUBL HLTH, DEPT INT HLTH, DIV HUMAN NUTR, BALTIMORE, MD 21205 USA