title: Cluster headache and its variants.
authors.forename: O
authors.initials: O
authors.lastname: Sjaastad
mesh_terms: D000367:Age Factors; D002908:Chronic Disease; D003027:Cluster Headache / Q000175:diagnosis*; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D008875:Middle Aged; D008881:Migraine Disorders / Q000175:diagnosis*; D010146:Pain; D010862:Pilocarpine; D014653:Vascular Headaches / Q000175:diagnosis*
chemical_list: D010862:Pilocarpine