TY - GEN AU - Tseng,L F TI - Evidence for epsilon-opioid receptor-mediated beta-endorphin-induced analgesia SN - 0165-6147 PY - 2002///0103 KW - Analgesics, Opioid KW - administration & dosage KW - Animals KW - Humans KW - Injections, Spinal KW - Receptors, Opioid KW - physiology KW - beta-Endorphin N1 - Publication Type: Journal Article; Research Support, U.S. Gov't, P.H.S.; Review UR - https://doi.org/10.1016/s0165-6147(00)01843-5 ER -