x With Men in 6 US Cities: Baseline Data From the EXPLORE StudyBeryl A. Koblin, PhD, Margaret A. Chesney, PhD, Marla J. Husnik, MS, Sam Bozeman, MPH, Connie L. Celum, MD, Susan Buchbinder, MD, Kenneth Mayer, MD, David McKirnan, PhD, Franklyn N. Judson, MD, Yijian Huang, PhD, Thomas J. Coates, PhD,