Leplus, A., Fontaine, D., Donnet, A., Regis, J., Lucas, C., Buisset, N., Blond, S., Raoul, S., Guegan-Massardier, E., Derrey, S., Jarraya, B., Dang-Vu, B., Bourdain, F., Valade, D., Roos, C., Creach, C., Chabardes, S., Giraud, P., Voirin, J., Bloch, J., Colnat-Coulbois, S., Caire, F., Rigoard, P., Tran, L., Cruzel, C., & Lantéri-Minet, M. (2021). long-Term Efficacy of Occipital Nerve Stimulation for Medically Intractable Cluster Headache. Neurosurgery, 88(2), . http://access.bl.uk/ark:/81055/vdc_100147209270.0x00004c