1. University of California San Francisco-Stanford Evidence-based Practice Center, Stanford, California, USAStanford University School of Medicine, Stanford, California, USA
2. University of California San Francisco-Stanford Evidence-based Practice Center, Stanford, California, USAStanford University School of Medicine, Stanford, California, USAVA Palo Alto Healthcare System, Palo Alto, California, USA
3. University of California San Francisco-Stanford Evidence-based Practice Center, Stanford, California, USAStanford University School of Medicine, Stanford, California, USAKaiser Permanente, Redwood City, California, USA
4. Rhode Island Hospital, Providence, Rhode Island, USABrown University School of Medicine, Providence, Rhode Island, USA