1. Department of Pediatrics, Section of Pediatric Clinical Pharmacology and Toxicology, University of Arkansas for Medical Sciences and Arkansas Children's Hospital, Little Rock, AR
2. Department of Pediatrics, Section on Clinical Pharmacology, Louisiana State University School of Medicine, Shreveport, LA
3. Departments of Pediatrics and Pharmacology, University of Missouri-Kansas City, Section of Pediatric Clinical Pharmacology and Experimental Therapeutics, Mercy Children's Hospital, Kansas City, MO
4. Department of Pediatrics, Center for Applied Research and Evaluation, University of Arkansas for Medical Sciences and Arkansas Children's Hospital, Little Rock, AR
5. Departments of Pediatrics, Pharmacology and Toxicology, University of Arkansas for Medical Sciences, Little Rock, AR