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[Evaluation study of the chronic headache questionnaire]

E Muñoz-Farjas1, F Morales, E Bernal

  • 1Unidad de Cefaleas, Servicio de Neurología, Hospital Clínico Universitario de Zaragoza, España.

Summary

The ZZA questionnaire showed limited effectiveness in distinguishing between transformed migraine and chronic tension headache. Only three questions demonstrated some validity, with two potentially aiding transformed migraine diagnosis.

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