Medication compliance among headache patients.
D000328:Adult; D000368:Aged; D000700:Analgesics / Q000627:therapeutic use*; D005260:Female; D006261:Headache / Q000188:drug therapy*; D006801:Humans; D008297:Male; D008875:Middle Aged; D010349:Patient Compliance; D010352:Patient Dropouts; D012646:Self Administration
D000700:Analgesics