Institution: University of Pennsylvania, 3440 Market Street, Suite 370, Philadelphia, PA 19104, USA; Philadelphia VAMC, University and Baltimore Avenues, Philadelphia, PA 19104, USA

Top Collaborators: Cary MS, Drapkin M, Mckay JR, Van Horn DH, Lynch KG, Ivey M

Research Interests: Cocaine, Controlled Environment, Counseling, Depression, Drugs, Environment, Family, Gender, Goal, Goals, Incentives, Measures, Outpatient, Patients, Report, Social Problem, Telephone, Toxicology, Treatment, Treatments