title: Letter: Comment on vaccination during pregnancy.
mesh_terms: D000013:Congenital Abnormalities / Q000209:etiology; D005260:Female; D005313:Fetal Death / Q000209:etiology; D006801:Humans; D011247:Pregnancy; D012900:Smallpox Vaccine / Q000009:adverse effects*; D014611:Vaccination / Q000009:adverse effects*
chemical_list: D012900:Smallpox Vaccine