title: Muscle-contraction (tension) headache.
mesh_terms: D000639:Amitriptyline / Q000627:therapeutic use; D001007:Anxiety / Q000503:physiopathology; D001676:Biofeedback, Psychology; D003220:Conflict, Psychological; D003866:Depressive Disorder / Q000150:complications; D004576:Electromyography; D006261:Headache / Q000175:diagnosis / Q000209:etiology* / Q000628:therapy; D006801:Humans; D008881:Migraine Disorders / Q000175:diagnosis; D009119:Muscle Contraction; D011602:Psychophysiologic Disorders / Q000175:diagnosis; D012064:Relaxation Therapy
chemical_list: D000639:Amitriptyline