
Keywords: ChEs, cholinesterases; BChE, butyrylcholinesterase; AChE, acetylcholinesterase; ChE, cholinesterase; OP, organophosphates; PP, pulverization period; RP, recess period; ACh, acetylcholine; ASCh, acetylthiocholine iodide; BSCh, butyrylthiocholine iodide; is