Nitrous-oxide analgesia for interventional radiologic procedures.
D000698:Analgesia; D000792:Angiography; D001007:Anxiety; D001706:Biopsy; D002404:Catheterization; D002758:Cholangiography; D006801:Humans; D009609:Nitrous Oxide; D011292:Premedication
D009609:Nitrous Oxide