Chronic daily headache.

  title={Chronic daily headache.},
  author={Stephen David Silberstein and Richard B. Lipton},
  journal={The Journal of the American Osteopathic Association},
  volume={105 4  Suppl 2},
Primary chronic daily headache can be subclassified into disorders of short duration (<4 h/attack) including chronic cluster and disorders of long duration (> or =4 h/attack). Primary chronic daily headache disorders of long duration include chronic tension-type headache, chronic daily migraine (previously called transformed migraine), new daily persistent… CONTINUE READING