Patterns of cluster headache with a note on the relations to angina pectoris and peptic ulcer.
D000293:Adolescent; D000328:Adult; D000368:Aged; D000787:Angina Pectoris / Q000150:complications; D001683:Biological Clocks; D004381:Duodenal Ulcer / Q000150:complications; D005260:Female; D006261:Headache / Q000150:complications; D006801:Humans; D008297:Male; D008875:Middle Aged; D010437:Peptic Ulcer / Q000150:complications; D010507:Periodicity; D013997:Time Factors