Kimura, F Two daily surges of prolactin secretion preserved after ovariectomy in the immature rat. [electronic resource] - Endocrinologia japonica Oct 1981 - 647-52 p. digital Publication Type: Journal Article ISSN: 0013-7219 Standard No.: 10.1507/endocrj1954.28.647 doi Subjects--Topical Terms: AnimalsCastrationCircadian RhythmFemaleProlactin--bloodRatsRats, Inbred StrainsSexual Maturation