1. Penn Center for Mental Health, Department of Psychiatry, Perelman School of Medicine University of Pennsylvania Philadelphia Pennsylvania USA
2. Department of Health Care Management, The Wharton School University of Pennsylvania Philadelphia Pennsylvania USA
3. Leonard Davis Institute of Health Economics University of Pennsylvania Philadelphia Pennsylvania USA
4. Center for Clinical Management Research VA Ann Arbor Healthcare System Ann Arbor Michigan USA
5. Department of Psychiatry University of Michigan Ann Arbor Michigan USA