Advocates from AIDS Healthcare Foundation protest Gilead Sciences' drug pricing policies outside the Westin Airport Hotel on Thursday, May 10, 2012 in San Francisco, Calif. (Alison Yin/AP Images for ... more 
Advocates from AIDS Healthcare Foundation protest Gilead Sciences' drug pricing policies outside the Westin Airport Hotel on Thursday, May 10, 2012 in San Francisco, Calif. (Alison Yin/AP Images for AIDS Healthcare Foundation) less 
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Associated Press
Thu, May 10, 2012 3:09 PM EDT