title: Risk of abortion following general anesthesia for surgery during pregnancy: anesthetic or surgical procedure?
mesh_terms: D000022:Abortion, Spontaneous / Q000209:etiology*; D000768:Anesthesia, General / Q000009:adverse effects*; D005260:Female; D006801:Humans; D011247:Pregnancy; D011248:Pregnancy Complications / Q000601:surgery*; D012306:Risk