Inside the glassy waiting room of a Hollywood clinic, a 33-year-old man sat and listened for his number to be called over the beats of a Mariah Carey song. “It’s just really easy. You don’t have to ...

Phlebotomist Latrell Anderson draws blood last week at the AIDS Healthcare Foundation Wellness Center in Los Angeles. (Francine Orr/Los Angeles Times) Inside the glassy waiting room of a Hollywood ...