1. Department of Pediatrics; University of Tennessee Health Science Center and Le Bonheur Children's Hospital; Memphis Tennessee
2. St. Jude Children's Research Hospital; Memphis Tennessee
3. Department of Clinical Biochemistry; College of Medicine & Health Sciences; Sultan Qaboos University; Muscat Oman
4. Department of Nutritional Sciences; University of Michigan School of Public Health; Ann Arbor Michigan
5. Departments of Medicine; University of Cincinnati College of Medicine; Cincinnati Ohio
6. Center on Genetics of Transport; University of Cincinnati College of Medicine; Cincinnati Ohio
7. Research Services; Veterans Affairs Medical Center; Cincinnati Ohio
8. Department of Pediatrics; University of Cincinnati College of Medicine; Cincinnati Ohio
9. Department of Molecular and Cellular Biology; Roswell Park Cancer Institute; Buffalo New York