TY - RPRT TI - Butorphanol dependence and withdrawal decrease hippocampal kappa 2-opioid receptor binding. AU - Lir-Wan Fan AU - Sachiko Tanaka AU - Younjoo Park AU - Kenro Sasaki AU - Tangeng Ma AU - Lu-Tai Tien AU - Robin William Rockhold AU - Ing Kang Ho PY - 2002 DO - 10.1016/s0006-8993(02)03572-2 UR - https://pubmed.ncbi.nlm.nih.gov/12470863/ ID - 12470863 ER -