Nitrous oxide.
Saunders
J F
JF
D001007:Anxiety / Q000188:drug therapy*; D003729:Dental Care; D005239:Fear / Q000187:drug effects*; D005260:Female; D006801:Humans; D009609:Nitrous Oxide / Q000008:administration & dosage / Q000627:therapeutic use*; D011247:Pregnancy
D009609:Nitrous Oxide