King, WD.; PA. Palmisano (June 1991). "Poison Control Centers: Can Their Value be Measured?". Southern Medical Journal. 84 (6): 722–726. doi:10.1097/00007611-199106000-00011. PMID2052960.
Miller, T.R.; et al. (February 1997). "Costs of Poisoning in the United States and Savings from Poison Control Centers: A Cost-Benefit Analysis". Annals of Emergency Medicine. 29 (2): 239–245. doi:10.1016/s0196-0644(97)70275-0. PMID9018189.
King, WD.; PA. Palmisano (June 1991). "Poison Control Centers: Can Their Value be Measured?". Southern Medical Journal. 84 (6): 722–726. doi:10.1097/00007611-199106000-00011. PMID2052960.
Miller, T.R.; et al. (February 1997). "Costs of Poisoning in the United States and Savings from Poison Control Centers: A Cost-Benefit Analysis". Annals of Emergency Medicine. 29 (2): 239–245. doi:10.1016/s0196-0644(97)70275-0. PMID9018189.