From the Department of Public Health and Clinical Medicine, University Hospital Umeå, Umeå (E.-L.G., B.S., P.-O.W., K.A.); Department of Clinical Neuroscience, Lund University, Lund (B.N.); Department of Medical Science, Uppsala University, Uppsala (A.T.); and Department of Medicine, Enköping Hospital, Enköping (K.H.-Å.), Sweden.(2003-08時点)
