Back to matchesWe found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleSubstantia nigra hyperechogenicity as a marker of predisposition and slower progression in Parkinson's disease.AuthorsSchweitzer, Katherine J.; Hilker, Rüdiger; Walter, Uwe; Burghaus, Lothar; Berg, Daniela; Hilker, RüdigerPublicationMovement Disorders, 2006, Vol 21, Issue 1, p94ISSN0885-3185Publication typejournal articleDOI10.1002/mds.20669