title: The embryo: a sign of contradiction.
authors.affiliation: Pontifical Council for Life, Vatican City.
authors.forename: E
authors.initials: E
authors.lastname: Sgreccia
mesh_terms: D000028:Abortion, Induced / Q000941:ethics; D033421:Beginning of Human Life / Q000941:ethics*; D002410:Catholicism; D004622:Embryo, Mammalian; D005260:Female; D005307:Fertilization in Vitro / Q000941:ethics; D005333:Fetus; D006801:Humans; D011247:Pregnancy; D026712:Value of Life