“Where are They?” The challenges of using venue-time-based sampling methods in HIV prevention research with heterosexual Black men

Jenne Massie, MS1, Russell Cole, PhD2, Michelle Teti, MPH, DrPH3, Jeanne Tschann, PhD4, David Malebranche, MD, MPH5 and Lisa Bowleg, PhD1
(1)Drexel University, Philadelphia, PA, (2)Mathematica Policy Research, Inc., Princeton, NJ, (3)University of Missouri, Columbia, MO, (4)University of California, San Francisco, San Francisco, CA, (5)Emory University, Atlanta, GA