| Affiliation: | 1. Institute for Research on Women and Gender, University of Michigan, Ann Arbor, MI 204 S. State St., Ann Arbor, MI 48109-1290, USA;2. Survey Research Center, Institute for Social Research, University of Michigan, Ann Arbor, MI, USA;3. Center for Statistical Consultation and Research, University of Michigan, Ann Arbor, MI, USA;4. College of Pharmacy, University of New England, Portland, ME, USA;5. Addiction Research Center, Department of Psychiatry, University of Michigan, Ann Arbor, MI, USA;6. School of Nursing, University of Michigan, Ann Arbor, MI, USA |
