Cognitive decline in association with hyposmia in idiopathic rapid eye movement sleep behavior disorder: a prospective 2-year follow-up study.
Chae Won ShinJee-Young LeeY K KimH NamE J YoonS A ShinH-J KimB JeonPublished in: European journal of neurology (2019)
Hyposmia may be a predictive sign of cognitive decline in iRBD patients.