Parathion poisoning in citrus grove operations in 1951.
D002802:Cholinesterases / Q000097:blood*; D002957:Citrus; D006801:Humans; D062025:Organophosphate Poisoning; D010278:Parathion / Q000506:poisoning*
D010278:Parathion; D002802:Cholinesterases
CHOLINESTERASE/in blood; PARATHION/poisoning