title: The ultrastructure of the trophoblast fossal regions in the pig placenta during pregnancy. Its steroidogenic features.
authors.forename: E
authors.initials: E
authors.lastname: Czarnowska
mesh_terms: D015096:3-Hydroxysteroid Dehydrogenases / Q000378:metabolism*; D000818:Animals; D005260:Female; D005865:Gestational Age; D006914:Hydroxysteroids / Q000096:biosynthesis*; D008854:Microscopy, Electron; D010920:Placenta / Q000648:ultrastructure*; D011247:Pregnancy; D013552:Swine / Q000033:anatomy & histology*; D014327:Trophoblasts / Q000648:ultrastructure*
chemical_list: D006914:Hydroxysteroids; D015096:3-Hydroxysteroid Dehydrogenases