Affiliation: | 1. Department of Urology, University of Michigan, Ann Arbor, MI;2. Department of Biomedical Engineering, University of Michigan, Ann Arbor, MI;1. Clinic of Reproductive Medicine, Vetsuisse-Faculty, University of Zurich, Winterthurerstrasse 260, 8057 Zurich, Switzerland;2. Division of Ambulatory Service and Herd Health, Department of Farm Animals, Vetsuisse-Faculty, University of Zurich, Winterthurerstrasse 260, 8057 Zurich, Switzerland |