title: Headache in Chinese psychiatric outpatients.
mesh_terms: D000293:Adolescent; D000328:Adult; D044466:Asian People; D005006:Ethnicity; D005260:Female; D006261:Headache; D006723:Hong Kong; D006801:Humans; D008297:Male; D001523:Mental Disorders / Q000175:diagnosis* / Q000628:therapy; D008875:Middle Aged; D010044:Outpatient Clinics, Hospital; D011379:Prognosis