title: [Observations on changes in blastocysts in white rats during "lactation" diapause].
mesh_terms: D000818:Animals; D001755:Blastocyst; D001942:Breast Feeding; D004622:Embryo, Mammalian / Q000033:anatomy & histology*; D004625:Embryo, Nonmammalian; D005260:Female; D006801:Humans; D007774:Lactation; D051381:Rats
keywords: EMBRYO/anatomy and histology