1. a Ohio State University College of Nursing and AIDS Clinical Trials Unit , Columbus , OH
2. b Ohio State University, Office of Responsible Research Practices , Columbus , OH
3. c Johns Hopkins Bloomberg School of Public Health , Baltimore , MD
4. d Veterans Affairs, San Diego Healthcare System, San Diego, CA4University of California San Diego School of Medicine , San Diego , CA
5. e Philadelphia Veterans Affairs Medical Center, PAand 5University of Pennsylvania School of Medicine, PA , USA