TY - RPRT TI - Dynorphin A-(1-13)-morphine interactions: quantitative and qualitative EEG properties differ in morphine-naive vs. morphine-tolerant rats. AU - Y Meng AU - G A Young PY - 1994 DO - 10.1016/0361-9230(94)90192-9 UR - https://pubmed.ncbi.nlm.nih.gov/7904888/ ID - 7904888 ER -