title: Feedback regulation of circulating LRF concentrations in men.
mesh_terms: D000328:Adult; D000368:Aged; D001681:Biological Assay; D002369:Castration; D004967:Estrogens / Q000494:pharmacology; D005246:Feedback; D007987:Gonadotropin-Releasing Hormone / Q000097:blood*; D006801:Humans; D007031:Hypothalamus / Q000502:physiology*; D007986:Luteinizing Hormone / Q000097:blood*; D008297:Male; D008875:Middle Aged; D010902:Pituitary Gland / Q000502:physiology*; D011374:Progesterone / Q000494:pharmacology; D011471:Prostatic Neoplasms / Q000097:blood; D011863:Radioimmunoassay; D013997:Time Factors; D014189:Transsexualism / Q000097:blood
chemical_list: D004967:Estrogens; D007987:Gonadotropin-Releasing Hormone; D011374:Progesterone; D007986:Luteinizing Hormone