title: Testosterone levels in cluster and non-cluster migrainous headache patients.
mesh_terms: D000328:Adult; D000368:Aged; D003027:Cluster Headache / Q000097:blood*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D008881:Migraine Disorders / Q000097:blood*; D013739:Testosterone / Q000097:blood*; D014653:Vascular Headaches / Q000097:blood*
chemical_list: D013739:Testosterone