Number and the type of adverse events Study period [clinicaltrials_resource:dd433556477fbbef97dd5c0ca77d0681]

Implant of an occipital nerve stimulator switched ON

Number and the type of adverse events Study period [clinicaltrials_resource:dd433556477fbbef97dd5c0ca77d0681]

Implant of an occipital nerve stimulator switched ON