Headache.
Bal
Sharon K
SK
Department of Family Medicine, Faculty of Medicine, University of Ottawa, Ontario K1N 5C8, Canada. sharon_k_bal@yahoo.ca
Hollingworth
Gary R
GR
D020773:Headache Disorders / Q000209:etiology / Q000628:therapy*; D006801:Humans; D008487:Medical History Taking / Q000379:methods; D010808:Physical Examination / Q000379:methods; D012008:Recurrence