1. Professor of Anesthesiology, College of Physicians and Surgeons of Columbia University.
2. Associate Professor of Clinical Anesthesiology, College of Physicians and Surgeons of Columbia University.
3. Assistant Professor of Anesthesiology, College of Physicians and Surgeons of Columbia University.
4. Fellow in Obstetric Anesthesia, College of Physicians and Surgeons of Columbia University.
5. Professor of Anesthesiology, Obstetrics and Gynecology, College of Physicians and Surgeons of Columbia University.
6. Assistant Professor of Anaesthesia, Harvard Medical School, Brigham and Women's Hospital.
7. Professor of Anaethesia, Harvard Medical School, Brigham and Women's Hospital.