A comparison of MMPI personality data and frontalis electromyographic readings in two groups of daily headache sufferers.
D004576:Electromyography; D006261:Headache / Q000188:drug therapy / Q000503:physiopathology / Q000523:psychology*; D006801:Humans; D008950:MMPI; D009119:Muscle Contraction; D010551:Personality