Cluster headache and the mast cells.
D000328:Adult; D000368:Aged; D002452:Cell Count; D003027:Cluster Headache / Q000209:etiology* / Q000473:pathology; D005260:Female; D005546:Forehead; D006801:Humans; D008297:Male; D008407:Mast Cells; D008875:Middle Aged; D012867:Skin / Q000473:pathology*; D014653:Vascular Headaches / Q000209:etiology*