1. From the Department of Veterinary and Comparative Anatomy, Pharmacology and Physiology (O.C., M.H., M.M., Y.W., K.T., H.G.), Washington State University, Pullman, Wash; the Institut für Anästhesiologie und Operative Intensivmedizin (A.F., T.C., S.L.), Universitätsklinikum, Mannheim, Germany; and European Molecular Biology Laboratory (T.C., S.L.), Heidelberg, Germany.