Affiliation: | US Naval Medical Research Unit No. 2, Phnom Penh, Cambodia (V. Heang, C.Y. Yasuda);;Ministry of Health, Phnom Penh (L. Sovann);;University of Texas Medical Branch, Galveston, Texas, USA (A.D. Haddow, A.P. Travassos da Rosa, R.B. Tesh);;US Naval Medical Research Unit No. 2, Jakarta, Indonesia (M.R. Kasper) |