1. Division of Biostatistics, School of Public Health; Clinical and Translational Institute; University of Minnesota; Minneapolis; MN; USA
2. Department of Psychiatry; University of Minnesota; Minneapolis; MN; USA
3. Department of Health Behavior and Health Education; University of Michigan; Ann Arbor; MI; USA
4. Wilder Foundation; Saint Paul; MN; USA
5. Department of Family Medicine; David Geffen School of Medicine at UCLA; Los Angeles; CA; USA
6. Baron Edmond de Rothschild Chemical Dependency Institute; Beth Israel Medical Center; Albert Einstein College of Medicine; New York; NY; USA