Some sobering facts about laughing gas.
D000395:Air Pollutants, Occupational / Q000009:adverse effects; D000818:Animals; D005260:Female; D005333:Fetus / Q000187:drug effects; D006801:Humans; D009609:Nitrous Oxide / Q000009:adverse effects*; D011247:Pregnancy
D000395:Air Pollutants, Occupational; D009609:Nitrous Oxide