1. Center for the Study of Drugs, Alcohol, Smoking and Health, University of Michigan School of Nursing, Ann Arbor, Michigan, USA;
2. Institute for Research on Women and Gender, University of Michigan, Ann Arbor, Michigan, USA;
3. University of Michigan Addiction Research Center, Ann Arbor, Michigan, USA;
4. Institute for Healthcare Policy and Innovation, University of Michigan, Ann Arbor, Michigan, USA;
5. Survey Research Center, Institute for Social Research, University of Michigan, Ann Arbor, Michigan, USA