title: Headache and sleep: also assess circadian rhythm sleep disorders: a response.
authors.affiliation: Pritzker School of Medicine, University of Chicago, Glenview, IL, 60026, USA.
authors.forename: Thomas
authors.initials: T
authors.lastname: Freedom
mesh_terms: D006261:Headache / Q000175:diagnosis*; D006801:Humans; D008550:Melatonin / Q000627:therapeutic use*; D012463:Saliva / Q000737:chemistry*; D020178:Sleep Disorders, Circadian Rhythm / Q000175:diagnosis*
chemical_list: D008550:Melatonin