TY - RPRT TI - Time-dependent decrease of pituitary response to LH-RH after chronic treatment of intact female rats with ethinyloestradiol and norethindrone. AU - H Kuhl AU - A Sachs AU - C Rosniatowski AU - H D Taubert PY - 1978 DO - 10.1530/acta.0.0890240 UR - https://pubmed.ncbi.nlm.nih.gov/358721/ ID - 358721 ER -