title: Vaccination against smallpox in early pregnancy.
mesh_terms: D000022:Abortion, Spontaneous / Q000209:etiology*; D005260:Female; D005313:Fetal Death / Q000209:etiology*; D006801:Humans; D011247:Pregnancy; D011251:Pregnancy Complications, Infectious / Q000517:prevention & control*; D011446:Prospective Studies; D012189:Retrospective Studies; D012899:Smallpox / Q000517:prevention & control*; D012900:Smallpox Vaccine / Q000009:adverse effects*; D015022:Yugoslavia
chemical_list: D012900:Smallpox Vaccine