@misc{indiciae92911178d8ea, title = {A mutation in human immunodeficiency virus reverse transcriptase and decline in CD4 lymphocyte numbers in long-term zidovudine recipients.}, author = {M J Kozal and R W Shafer and M A Winters and D A Katzenstein and T C Merigan}, year = {1993}, doi = {10.1093/infdis/167.3.526}, url = {https://pubmed.ncbi.nlm.nih.gov/7680058/}, note = {Source identifier: 7680058} }