Hormonal dynamics in the preovulatory ovarian follicle and the oocyte in rat during proestrus Stanislawa STOKLOSOWA, Maria SZOLTYS and Mrs Eva GREGORASZCZUKAnn. Biol. anim. Bioch. Biophys., 18 2B (1978) 503-509DOI: https://doi.org/10.1051/rnd:19780322