1. Department of Pharmacology, University of Texas Health Science Center at San Antonio, San Antonio, Texas.
2. Department of Cellular and Structural Biology, University of Texas Health Science Center at San Antonio, San Antonio, Texas.
3. Department of Radiology, University of Texas Health Science Center at San Antonio, San Antonio, Texas.
4. Department of Clinical Laboratory Sciences, University of Texas Health Science Center at San Antonio, San Antonio, Texas.
5. Department of Biochemistry, University of Texas Health Science Center at San Antonio, San Antonio, Texas.