TY - RPRT TI - Plasma corticosterone levels during active avoidance learning. AU - G D Coover AU - S Levine AU - H Ursin PY - 1971 DO - 10.1111/j.1748-1716.1971.tb05022.x UR - https://pubmed.ncbi.nlm.nih.gov/5166728/ ID - 5166728 ER -