Children's Hospital Research Children's Hospital Labs Cathryn Samples, MD, MPH, AAHIVS Cathryn Samples, MD, MPH, AAHIVS Boston HAPPENS Adolescent Trials Network Clinical Trials Clinical Trials and Studies For information about currently available studies or clinical trials, e-mail Dr. Samples (cathryn.samples@childrens.harvard.edu), or contact our ATN study coordinators at 617-355-5592, or 8934 Copyright 2004-2006 Children's Hospital Boston