1. From Research Institute for Internal Medicine (J.K.D., T.W., A.Y., K.O., A.H., N.O.S., S.S.F., P.A.), the Department of Cardiology (J.K.D., T.W., A.H., L.G.), Section of Clinical Immunology and Infectious Diseases (S.S.F., P.A.), Rikshospitalet, Oslo, Norway.