Norman Rosenthal, MD Clinical Professor of Psychiatry Georgetown University School of Medicine Author, Winter Blues (Revised edition, Guilford Press, 1998) Dr. Rosenthal has disclosed that he is a consultant and member of the speaker’s bureau for GlaxoSmithKline, and has spoken about the use of Wellbutrin XL for preventing SAD. In order to prevent the possibility of commercial bias, we have not included any material on medication management of SAD in this interview.