1. Professor and Director of Clinical Research and Director of Orthopaedic Anesthesia and Acute Orthopaedic Pain;
2. Assistant Professor, Assistant Director of the Residency Program and Assistant Director of Orthopaedic Anesthesia and Acute Orthopaedic Pain;
3. Visiting Assistant Professor,
4. Regional Anesthesia Fellow, Department of Anesthesiology;
5. Assistant Professor, jProfessor and Chairman, Department of Orthopaedic Surgery
6. The University of Texas Medical School at Houston, Houston, Texas 77030-1503