Cluster headache.
Olin
J S
JS
D000281:Administration, Intranasal; D000779:Anesthetics, Local / Q000008:administration & dosage*; D001340:Autonomic Nerve Block; D003027:Cluster Headache / Q000628:therapy*; D005726:Ganglia, Parasympathetic / Q000187:drug effects; D006801:Humans
D000779:Anesthetics, Local