Arterial spasms.
D000818:Animals; D002340:Carotid Artery Diseases / Q000139:chemically induced / Q000000981:diagnostic imaging / Q000188:drug therapy; D002343:Carotid Artery, Internal; D002533:Cerebral Angiography; D004285:Dogs; D004338:Drug Combinations; D004359:Drug Therapy, Combination; D006801:Humans; D013035:Spasm / Q000139:chemically induced / Q000000981:diagnostic imaging / Q000188:drug therapy*; D014665:Vasodilator Agents / Q000008:administration & dosage*
D004338:Drug Combinations; D014665:Vasodilator Agents