1. Associate Professor of Anaesthesia, Harvard Medical School; As-sociate Anesthetist, Massachusetts General Hospital.
2. Research Fellow, Harvard Medical School; Massachusetts General Hospital.
3. Associate Professor of Anaesthesia, Harvard Medical School; Anesthetist, Massachusetts General Hospital.
4. Assistant Professor of Statistics, Harvard University.
5. Instructor in Anaesthesia, Harvard Medical School; Assistant in Anesthesia, Massachusetts General Hospital.
6. Assistant Professor oF Anaesthesia, Harvard Medical School; Assistant Anesthetist, Massachusetts General Hospital.