title: Normal pregnancy following nitrous oxide exposure in the first trimester.
mesh_terms: D000328:Adult; D000768:Anesthesia, General; D005260:Female; D006801:Humans; D009609:Nitrous Oxide / Q000494:pharmacology; D011247:Pregnancy / Q000187:drug effects*; D011261:Pregnancy Trimester, First
chemical_list: D009609:Nitrous Oxide