TY - RPRT TI - Evidence that a decrease in opioid tone may evoke preovulatory luteinizing hormone release in the rat. AU - L G Allen AU - S P Kalra PY - 1986 DO - 10.1210/endo-118-6-2375 UR - https://pubmed.ncbi.nlm.nih.gov/3698918/ ID - 3698918 ER -