1. From the Research Institute for Internal Medicine (P.A., B.H., A.Y., T.U., E.Ø., KJ.O., J.K.D.), the Section of Clinical Immunology and Infectious Diseases (P.A., J.K.D.), the Section of Endocrinology (T.U.), and the Department of Cardiology (E.Ø., L.G.), Rikshospitalet University Hospital, University of Oslo, Norway.