...AIDS Healthcare Foundation (AHF)...has banned...sales representatives from Pfizer [manufacturer of Viagra]...from...its healthcare centers. Two weeks ago, AHF filed a lawsuit against Pfizer... In its letter...to Pfizer CEO Jeffrey Kindler, [AHF's] President...stated: "...there has been no recognition by your organization of the documented correlation between Viagra and the recent rise in sexually transmitted diseases and HIV in men who have sex with men... By not taking responsibility for [these] dangers...Pfizer does not demonstrate corporate citizenship and responsibility...”