1. RAND Corporation , Arlington, VA 22202 , United States
2. RAND Corporation , Santa Monica, CA 90401 , United States
3. University of California Los Angeles , Psychiatry and Behavioral Sciences, Los Angeles, CA 90073 , United States
4. Brigham and Women's Hospital , Department of Medicine, Boston, MA 02120 , United States
5. RAND Corporation , Boston, MA 02116 , United States
6. National Health Law Program , Washington, DC 20005 , United States