Kupper J, Schuman M, Wennig R, Gorber U, Mittelholzer A, Artho R, Meyer S, Kupferschmidt H, Naegeli H
Institute of Veterinary Pharmacology and Toxicology, University of Zurich, Winterthurerstrasse 260, CH-8057 Zurich, Switzerland.
Vet Rec. 2008 Apr 12;162(15):488-9. doi: 10.1136/vr.162.15.488.