Case ReportPublished 18 August 2026Occipital nerve stimulation for refractory facial pain following occipital pain onset: a case report supporting cervicotrigeminal convergenceMarina Raguž · Marko Tarle · Koraljka Hat · Petar Marčinković · Sven Krušić · Tonko Marinović · Darko ChudyFrontiers in Pain Researchdoi 10.3389/fpain.2026.1917660