In addition, the direct role of nitrites in AIDS is established by data
from the MACS showing that HIV-negatives had, on average, 25 months of
nitrite use, HIV-positives had 60 months of nitrite use, and AIDS patients
had over 65 months of nitrite use--an apparent dose-response relation.

When asked whether there was even one gay AIDS case in the cohort who had
not used drugs, a somewhat-surprised Jacobson replied, "I have never
looked at the data in this way."

National Institute on Drug Abuse (NIDA) on the toxic effects of nitrite
inhalants,
[Reported in the article "NIH reconsiders nitrites' link to AIDS" by John
Lauritsen, Biotechnology