1. Department of Sociology Center on Drug & Alcohol Research Center for Health Equity Transformation University of Kentucky Lexington Kentucky USA
2. Department of Psychiatry and Behavioral Sciences Johns Hopkins University School of Medicine Baltimore Maryland USA
3. Department of Sociology University of Kentucky Lexington Kentucky USA
4. Indiana University Network Science Institute Bloomington Indiana USA
5. Department of Behavioral Science Center on Drug & Alcohol Research University of Kentucky Lexington Kentucky USA