1. Department of Pharmaceutical Sciences; Texas Tech University Health Sciences Center, School of Pharmacy; Amarillo TX 79106 USA
2. Department of Anesthesiology; University of Rochester Medical Center; Rochester NY 14642 USA
3. Department of Chemistry and Biochemistry; Texas Tech University; Lubbock TX 79409 USA
4. Center for Chemical Biology, Department of Chemistry and Biochemistry; Texas Tech University; Lubbock TX 79409 USA