Toby L. Litovitz, Wendy Klein-Schwartz, Suzanne White, Daniel J. Cobaugh, Jessica Youniss, Alison Drab, Blaine E. Benson,
1999 annual report of the American Association of Poison Control Centers Toxic Exposure Surveillance System. American Journal of Emergency Medicine. ,vol. 18, pp. 517- 574 ,(2000) ,
10.1053/AJEM.2000.9261