[Progression from episodic migraine to chronic migraine].

  title={[Progression from episodic migraine to chronic migraine].},
  author={Kiyomi Yamane},
  journal={Rinsho shinkeigaku = Clinical neurology},
  volume={54 12},
Migraine is, essentially, an episodic disease. However, characteristics of headache of some episodic migraine change like as tension-type headache and number of headache days also increased, as a result, develop into chronic migraine.However, it is difficult to distinguish chronic migraine and medication oversuse headache. For this reason, and because of… CONTINUE READING