TY - RPRT TI - Postnatal decrease in substantia nigra echogenicity. Implications for the pathogenesis of Parkinson's disease. AU - Alexander Iova AU - Andrew Garmashov AU - Natalia Androuchtchenko AU - Martin Kehrer AU - Daniela Berg AU - Georg Becker AU - Yurii Garmashov PY - 2004 DO - 10.1007/s00415-004-0556-3 UR - https://pubmed.ncbi.nlm.nih.gov/15645343/ ID - 15645343 ER -