This is a test website. For our live site please visit www.sagepub.com
The Sage website, including online ordering services, may be unavailable due to system maintenance on 18th January between 2:00 am and 8:30 pm GMT. If you need assistance please contact our Customer Service team. Thank you for your patience and we apologise for the inconvenience.
Mark Helfand, MD, MPH Oregon Health & Sciences University (Portland, United States)
Dr. Helfand is a staff physician at the Portland VA Medical Center and Professor of Medicine at OHSU. He directs the Scientific Resource Center for AHRQ’s Effective Health Program and the VHA’s Evidence-based Synthesis Program Coordinating Center.