Chronic poisoning by a phosphate ester insecticide, Malathion.
D000328:Adult; D002802:Cholinesterases / Q000097:blood; D006801:Humans; D008294:Malathion / Q000506:poisoning*; D008297:Male; D011041:Poisoning / Q000201:enzymology
D002802:Cholinesterases; D008294:Malathion