1. Kentucky Regional Poison Center, Louisville, KY
2. Cincinnati Drug and Poison Information Center, Cincinnati, OH
3. Northern Ohio Poison Center, Cleveland, OH
4. Arkansas Poison and Drug Information Center
5. College of Pharmacy, University of Arkansas for Medical Sciences, Little Rock, AR
6. West Virginia Poison Center, Charleston, WV
7. West Virginia Poison Center
8. Department of Clinical Pharmacy, School of Pharmacy, West Virginia University, Morgantown, WV
9. Central Ohio Poison Center-Nationwide Children's Hospital, Columbus, OH