1. Program in Addiction Medicine, Section of General Internal Medicine, Yale School of Medicine, New Haven, Connecticut (S.M.C.)
2. Legal Action Center, New York, New York (R.J., S.F.)
3. Hospital Medicine Program, Division of General Internal Medicine, University of Washington, Seattle, Washington (K.M.B.)
4. Sections of General Internal Medicine and Infectious Diseases, Boston Medical Center and Boston University School of Medicine, Boston, Massachusetts (S.D.K.).