Sexual Networks and HIV Risk among Black Men Who Have Sex with Men in 6 U.S. Cities. oleh Hong-Van Tieu, Ting-Yuan Liu, Sophia Hussen, Matthew Connor, Lei Wang, Susan Buchbinder, Leo Wilton, Pamina Gorbach, Kenneth Mayer, Sam Griffith, Corey Kelly, Vanessa Elharrar, Gregory Phillips, Vanessa Cummings, Beryl Koblin, Carl Latkin, HPTN 061