1. Associate Professor of Anesthesiology.
2. Associate Professor of Anesthesiology, University of Pittsburgh, Pittsburgh, Pennsylvania.
3. Regional Anesthesia Research Fellow.
4. Associate Clinical Professor of Orthopedic Surgery, Assistant Clinical Professor of Orthopedic Surgery.
5. Assistant Clinical Professor of Anesthesiology.
6. Professor of Anesthesiology, College of Physicians and Surgeons, Columbia University.