'Roses Are Red, Viagra is Blue...' Pfizer Knows Better - Shame on You! Says AHF LOS ANGELES, Feb. 13 /PRNewswire/ -- AIDS Healthcare Foundation, (AHF) the nation's largest AIDS group and a direct provider of HIV/AIDS medical care to tens of thousands of AIDS patients in the US, Africa, Central America and Asia, issued a warning today that it expects Pfizer, Inc., the world's largest pharmaceutical company, to run a Valentine's Day-themed ad for Viagra as part of its ongoing shameless holiday-themed advertising campaign for its blockbuster sex drug. For the past several months, Pfizer has been running a direct-to-consumer...