@article{Hira1989,
author = {Hira, S.K. and Kamanga, J. and Bhat, G.J. and Mwale, C. and Tembo, G. and Luo, N. and Perine, P.L.},
title= {Perinatal transmission of HIV-1 in Zambia},
year = {1989},
doi = {10.1136/bmj.299.6710.1250},
journal = {British Medical Journal},
volume = {299},
number = {6718},
pages = {1250--1252},
}