| Affiliation: | (1) Ambulatorische und Geburtshilfliche Veterinär-Klinik, Universität Gießen, Frankfurter Strasse 106, D-6300 Gießen, Federal Republic of Germany;(2) Institut für Physiologie, Technische Universität München, D-8050 Freising-Weihenstephan, Federal Republic of Germany;(3) Federal State Control Laboratory for Food and Environmental Chemistry NW, Sperlichstrasse 19, D-4400 Münster, Federal Republic of Germany;(4) Department of Analytical Research, Boehringer Ingelheim KG, D-6507 Ingelheim am Rhein, Federal Republic of Germany;(5) Institute of Physiology, Technical University of Munich, D-8050 Freising-Weihenstephan, Federal Republic of Germany |
