1. Department of Social Work, College of Community and Public Affairs, Binghamton University, Binghamton, New York, USA
2. Iowa Consortium for Substance Abuse Research and Evaluation, The University of Iowa, Iowa City, Iowa
3. Department of Psychological and Quantitative Foundations, Counseling Psychology Program, College of Education, The University of Iowa, Iowa City, Iowa, USA
4. Department of Psychiatry, Carver College of Medicine, The University of Iowa, Iowa City, Iowa, USA
5. Department of Biostatistics, College of Public Health, The University of Iowa, Iowa City, Iowa, USA