1. Department of Psychology, Wayne State University, New Haven, Michigan, USA;
2. Department of Psychiatry, Yale University School of Medicine, New Haven, Connecticut, USA;
3. Department of Psychiatry, Division on Substance Abuse, Columbia University Medical Center/New York State Psychiatric Institute, New York, New York, USA;
4. Henry Ford Health System, Center for Health Services Research, Detroit, Michigan, USA;
5. Department of Family Medicine & Community Health, University of Massachusetts Medical School, Worcester, Massachusetts, USA