Nitrous oxide during pregnancy.
D000014:Abnormalities, Drug-Induced / Q000209:etiology; D000022:Abortion, Spontaneous / Q000139:chemically induced; D000768:Anesthesia, General / Q000009:adverse effects*; D000773:Anesthesia, Obstetrical / Q000009:adverse effects*; D005260:Female; D006801:Humans; D009609:Nitrous Oxide / Q000009:adverse effects*; D011247:Pregnancy / Q000187:drug effects*
D009609:Nitrous Oxide