| Affiliation: | 1. Department of Medicine, Section of General Internal Medicine, Clinical Addiction Research and Education (CARE) Unit, Boston University School of Medicine/Boston Medical Center, , Boston, MA, USA;2. Department of Biostatistics, Boston University School of Public Health, , Boston, MA, USA;3. Data Coordinating Center, Boston University School of Public Health, , Boston, MA, USA;4. Institute of Pharmacology, St. Petersburg Pavlov State Medical University, , St. Petersburg, Russia;5. Laboratory of Clinical Pharmacology of Addictions, St. Petersburg Pavlov State Medical University, , St. Petersburg, Russia;6. Department of Addictions, Bekhterev Research Psychoneurological Institute, , St. Petersburg, Russia;7. Department of Community Health Sciences, Boston University School of Public Health, , Boston, MA, USA |
