title: A toxic principle from progestational endometrium and placenta.
authors.forename: C L
authors.initials: CL
authors.lastname: SCHNEIDER
mesh_terms: D004717:Endometrium / Q000737:chemistry*; D005260:Female; D006801:Humans; D008598:Menstruation; D010920:Placenta / Q000737:chemistry*; D011247:Pregnancy