@misc{indiciae5ceeb760fb3c, title = {Immediate versus deferred zidovudine.}, author = {R Peto and R Collins}, year = {1993}, doi = {10.1016/0140-6736(93)91109-y}, url = {https://pubmed.ncbi.nlm.nih.gov/8096900/}, note = {Source identifier: 8096900} }