1. From the Neuroscience Program (K.N., P.M.I., J.S., P.I., R.S., P.J.L.), Biomedicum Helsinki, Finland; the Department of Neurology (K.N., P.I., L.S., M.K., P.J.L.), Helsinki University Central Hospital, Finland; the Department of Public Health (J.P.), University of Helsinki, Finland; the Department of Surgery (E.S.), South Karelia Central Hospital, Lappeenranta, Finland; the Department of Radiology (O.S.), Helsinki University Central Hospital, Finland; and the Wihuri Research Institute, Helsinki (P.T...