1. Department of Psychology, Illinois Institute of Technology, Chicago, Illinois, USA;
2. Department of Psychiatry, Yale University, New Haven, Connecticut, USA;
3. Department of Psychiatry and Psychotherapy, University of Leipzig, Leipzig, Germany;
4. Midwest Harm Reduction Institute, Heartland Alliance, Chicago, Illinois, USA;
5. Department of Psychiatry, University of Massachusetts Medical School, Worcester, Massachusetts, USA