Singh, K B Induction of polycystic ovarian disease in rats by continuous light. II. Observations on mating, pregnancy, and the postpartum period. [electronic resource] - American journal of obstetrics and gynecology Aug 1969 - 1004-7 p. digital Publication Type: Journal Article ISSN: 0002-9378 Standard No.: 10.1016/0002-9378(69)90692-9 doi Subjects--Topical Terms: AnimalsBreeding--drug effectsEnvironmental ExposureEstrusFemaleLightMaleOvarian Cysts--etiologyOvulationPregnancyPregnancy, AnimalProgesterone--pharmacologyRatsSexual Behavior, AnimalVaginal Smears