Preoperative visualization of the greater occipital nerve with magnetic resonance imaging in candidates for occipital nerve decompression for headaches oleh Mariam Saad, Isaac V. Manzanera Esteve, Adam G. Evans, Huseyin Karagoz, Tigran Kesayan, Krista Brooks-Horrar, Saikat Sengupta, Ryan Robison, Brian Johnson, Richard Dortch, Wesley P. Thayer, Patrick Assi, Lisa Gfrerer, Salam Kassis