TY - RPRT TI - Volitional ethanol increases during acquisition and extinction of avoidance responding. AU - C A Opsahl AU - G I Hatton PY - 1972 DO - 10.1016/0031-9384(72)90133-3 UR - https://pubmed.ncbi.nlm.nih.gov/4677201/ ID - 4677201 ER -