TY  - RPRT
TI  - Immediate versus deferred zidovudine.
AU  - R Peto
AU  - R Collins
PY  - 1993
DO  - 10.1016/0140-6736(93)91109-y
UR  - https://pubmed.ncbi.nlm.nih.gov/8096900/
ID  - 8096900
ER  -