1. Liaison Psychiatry Service, Department of Psychiatry, St. Joseph's Hospital, London, Ontario; Departments of Psychiatry and Family Medicine, University of Western Ontario, London, Ontario.
2. Department of Psychiatry, University of Western Ontario, London, Ontario.
3. London Psychiatric Hospital, London, Ontario; Department of Psychiatry, University of Western Ontario, London, Ontario.
4. Department of Psychiatry, St. Joseph's Hospital, London, Ontario; Department of Psychiatry, University of Western Ontario, London, Ontario.