Echogenicity of the Substantia NigraDaniela Berg, Georg Becker, Wolfgang Roggendorf et al.|Archives of Neurology|2002Cited by 379
Vulnerability of the nigrostriatal system as detected by transcranial ultrasoundDaniela Berg, Klaus W. Lange, Björn Zeiler et al.|Neurology|1999Cited by 313
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
Depression in Parkinson's disease: brainstem midline alteration on transcranial sonography and magnetic resonance imagingDaniela Berg, Georg Becker, Erich Hofmann et al.|Journal of Neurology|1999Cited by 128
Case report Man-in-the-barrel syndrome caused by cervical spinal cord infarctionDaniela Berg, Karlheinz Reiners, W. Miillges et al.|Acta Neurologica Scandinavica|1998Cited by 64