Cephalalgia. 2016 Oct 3. pii: 0333102416673206.Occipital nerve stimulation improves the quality of life in medically-intractable chronic cluster headache: Results of an observational prospective study.Fontaine D1, Blond S2, Lucas C3, Regis J4, Donnet A5, Derrey S6, Guegan-Massardier E7, Jarraya B8, Dang-Vu
