1. Department of Anesthesiology and Pain Management, Baylor University Medical Center, Dallas
2. Department of Oral and Maxillofacial Surgery, Baylor University Medical Center, Dallas
3. Department of General Surgery, Baylor University Medical Center, Dallas
4. Department of Plastic Surgery, Baylor University Medical Center, Dallas
5. Department of Anesthesiology and Pain Management, The University of Texas Southwestern Medical Center at Dallas