Echogenicity of the Substantia NigraDaniela Berg, Georg Becker, Wolfgang Roggendorf et al.|Archives of Neurology|2002Cited by 379
Brain iron pathways and their relevance to Parkinson's diseaseDaniela Berg, Georg Becker, M. Gerlach et al.|Journal of Neurochemistry|2001Cited by 367
Vulnerability of the nigrostriatal system as detected by transcranial ultrasoundDaniela Berg, Klaus W. Lange, Georg Becker et al.|Neurology|1999Cited by 313
Echogenicity of the substantia nigra in Parkinson's disease and its relation to clinical findingsDaniela Berg, Georg Becker, Christiane Siefker|Journal of Neurology|2001Cited by 305
Five‐year follow‐up study of hyperechogenicity of the substantia nigra in Parkinson's diseaseDaniela Berg, Georg Becker, B. Merz et al.|Movement Disorders|2004Cited by 242