Kim, Y J The effect of steroids on mitosis and maintenance of pregnancy in spayed rats. [electronic resource] - The Anatomical record Jan 1968 - 37-45 p. digital Publication Type: Journal Article ISSN: 0003-276X Standard No.: 10.1002/ar.1091600105 doi Subjects--Topical Terms: Analysis of VarianceAnimalsAutoradiographyCastrationEstradiol--pharmacologyFemaleMitosis--drug effectsMuscle ContractionPlacenta--metabolismPregnancyPregnancy, AnimalProgesterone--pharmacologyRatsThymidine--metabolismTritiumTrophoblasts--cytologyUterus--physiology