1. Oklahoma Center for Poison and Drug Information, Oklahoma University College of Pharmacy, Oklahoma City, OK, USA
2. Drug & Poison Information Center, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
3. Harvard Medical School, Boston, MA, USA
4. Rocky Mountain Poison & Drug Safety, Denver Health and Hospital Authority, Denver, CO, USA
5. Inflexxion, an IBH Company, Costa Mesa, CA, USA