1. Michigan Poison & Drug Information Center, Wayne State University School of Medicine, Detroit, MI, USA
2. Rocky Mountain Poison and Drug Safety, Denver Health and Hospital Authority, Denver, CO, USA
3. Student Research Committee, Birjand University of Medical Sciences, Birjand, Iran
4. Medical Toxicology and Drug Abuse Research Center (MTDRC), Birjand University of Medical Sciences (BUMS), Birjand, Iran
5. Department of Emergency Medicine, Michigan Poison & Drug Information Center, Wayne State University School of Medicine, Detroit, MI, USA
6. University of Colorado Anschutz Medical Campus, Aurora, CO, USA
7. University of Colorado Hospital, Aurora, CO, USA