1. From the Department of Neurology (A.A., D.R., M.S.), the Research Institute of Internal Medicine (A.A., P.A., T.B.D., V.B., E.B.L.S., A.M., S.H., M.S., B.H.), the Department of Thoracic and Cardiovascular Surgery (K.K.S.), and the Section of Clinical Immunology and Infectious Diseases (P.A.), Oslo University Hospital, Rikshospitalet, Norway; and the Faculty of Medicine (P.A., T.B.D., V.B., E.B.L.S., A.M., D.R., B.H.), University of Oslo, Oslo, Norway.