Institution: | (1) Institute for Clinical Chemistry, Marchioninistrasse 15, D-8000 München 70, Federal Republic of Germany;(2) Department of Neurology at Klinikum Großhadern, Ludwig-Maximilians-Universität, Marchioninistrasse 15, D-8000 München 70, Federal Republic of Germany;(3) Behringwerke A.G., D-3550 Marburg, Federal Republic of Germany |