1. a Division of Forensic Medicine , University of Florida College of Medicine , Gainesville , Florida , USA
2. b School of Social Work , The University of Texas at Austin , Austin , Texas , USA
3. c Center for Substance Abuse Treatment , Substance Abuse and Mental Health Services Administration , Rockville , Maryland , USA
4. d Center for Health Services & Outcomes Research , JBS International, Inc. , North Bethesda , Maryland , USA