by Ryder, Robert W, Nsa, Wato, Hassig, Susan E, Behets, Frieda, Rayfield, Mark, Ekungola, Bayende, Nelson, Ann M, Mulenda, Utshudi, Francis, Henry, Mwandagalirwa, Kashamuka, Davachi, Farzin, Rogers, Martha, Nzilambi, Nzila, Greenberg, Alan, Mann, Jonathan, Quinn, Thomas C, Piot, Peter, Curran, James W
Published in The New England journal of medicine (22.06.1989)

by Ryder, RW, Nsa, W, Hassig, SE, Behets, F, Rayfield, M, Ekungola, B, Meldon, AM, Mulenda, U, Francis, H, Mwandagalirwa, K, Davachi, F, Rogers, M, Nzilambi, N, Greenberg, A, Mann, J, Quinn, TC, Piot, P, Curran, JW
Published in International journal of gynecology and obstetrics (1990)