1. Effects of metrifonate on cognitive decline in Alzheimer disease: a double-blind, placebo-controlled, 6-month study;Becker;Alzheimer Dis. Assoc. Disord.,1998
2. http://www.epa.gov/oppsrrd1/REDs/trichlorfon_red.pdf – Environmental Protection Agency.
3. http://extoxnet.orst.edu/pips/trichlor.htm – Extension Toxicology Network.
4. http://www.epa.gov/pesticides/reregistration/REDs/trichlorfon_tred.pdf – US EPA Memorandum on Organophosphate Pesticides.
5. http://www.epa.gov/pesticides/reregistration/REDs/0104.pdf – US EPA Reregistration Eligibility Decision (RED): Trichlorfon.