Value of combined midbrain sonography, olfactory and motor function assessment in the differential diagnosis of early Parkinson's disease
Knut Busse, Robert Heilmann, Sabine Kleinschmidt, Mazen Abu-Mugheisib, Jacqueline Höppner, Christian Wunderlich, Irene Gemende, Lara Kaulitz, Alexander Wolters, Reiner Benecke, Uwe Walter
Journal of Neurology, Neurosurgery & Psychiatry Apr 2012, 83 (4) 441-447; DOI: 10.1136/jnnp-2011-301719
