1. Department of Radiology Division of Nuclear Medicine and Molecular Imaging Stanford University School of Medicine Stanford CA USA
2. Philip R. Lee Institute for Health Policy Studies University of California San Francisco San Francisco CA USA
3. Department of Medicine, Epidemiology & Biostatistics University of California San Francisco San Francisco CA USA
4. Department of Medicine UCSF Helen Diller Family Comprehensive Cancer Center San Francisco CA USA
5. Sutter Medical Foundation Sacramento CA USA
6. Philip R. Lee Institute for Health Policy Studies Center for Healthcare Value University of California San Francisco CA USA