Plasma viral load in symptom-free women and vertical transmission of HIV-1. - HENBARD, DENIS R.; PHILLIPS, JACK; BURCHETT, SANDRA; JACKSON, J. BROOKS; KATAAHA, PETER; MMIRO, FRANCIS; NDUGWA, CHRISTOPHER; Henrard, D R; Phillips, J; Burchett, S; Jackson, J B; Kataaha, P; et al. (Lancet, 1992)