@article{Petra Study Team2002,
author = {Petra Study Team},
title= {Efficacy of three short-course regimens of zidovudine and lamivudine in preventing early and late transmission of HIV-1 from mother to child in Tanzania, South Africa, and Uganda (Petra Study): A randomised, double-blind, placebo-controlled trial},
year = {2002},
journal = {Lancet},
volume = {359},
pages = {1178--1186},
}