1. Faculty of Veterinary Medicine Institute of Animal Nutrition, Nutrition Diseases and Dietetics University of Leipzig Leipzig Germany
2. Department of Clinical Pharmacology Center of Drug Absorption and Transport University Medicine of Greifswald Greifswald Germany
3. Department of Biopharmaceutics and Pharmaceutical Technology Center of Drug Absorption and Transport University of Greifswald Greifswald Germany
4. Alta Deutschland GmbH Uelzen Germany