If you can't produce them, just be honest and say so.
Haha...go to med school, you'll understand how dumb this article is. I have neither the time nor inclination to supply an article for you. That is like telling me to supply an article that the moon landing actually occured, or that air contains oxygen.
The fact that some bogus article disputes the scientific fact that the spread of aids is caused in part by unsafe vaginal sex, does nothing to "prove" anything. This is simply absurd.
How are babies born with HIV if it is a gay, drug user disease?