[1] Univ Michigan, Ctr Study Drugs Alcohol Smoking & Hlth, Sch Nursing, 400 N Ingalls St, Ann Arbor, MI 48109 USA
[2] Univ Georgia, Dept Counseling & Human Dev Serv, Athens, GA USA
[3] Wayne State Univ, Sch Social Work, Detroit, MI USA
[4] Wayne State Univ, Merrill Palmer Skillman Inst, Detroit, MI USA