1. Institute of Biomedicine (T.J.A., P.L.H., M.T.N.), Department of Anatomy and the Medicity Research Laboratory, University of Turku, FIN-20520 Turku, Finland
2. Department of Pathology (T.J.A., H.R., M.T.N.), Uniformed Services University of the Health Sciences, Bethesda, Maryland 20814
3. Departments of Pathology (J.L., P.M.M.), University of Turku, FIN-20520 Turku, Finland and Tampere University Hospital, FIN-33521, Tampere, Finland