TY - RPRT TI - Epinephrine, norepinephrine, and acetylcholine as conditioned stimuli for avoidance behavior. AU - L COOK AU - A DAVIDSON AU - D J DAVIS AU - R G KELLEHER PY - 1960 DO - 10.1126/science.131.3405.990 UR - https://pubmed.ncbi.nlm.nih.gov/13811708/ ID - 13811708 ER -