title: I. An epidemiological review of the role of gravidity in spontaneous abortion.
mesh_terms: D000026:Abortion, Habitual; D000022:Abortion, Spontaneous / Q000453:epidemiology*; D001722:Birth Order; D005260:Female; D006801:Humans; D008423:Maternal Age; D010298:Parity; D011247:Pregnancy; D013223:Statistics as Topic