1 Department of Infectious Diseases 8632, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark.
2 Department of Clinical Biochemistry, Copenhagen General Population Study, Herlev and Gentofte Hospital, Copenhagen University Hospital, Herlev, Denmark.
3 Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark.
4 Department of Infectious Diseases, Hvidovre Hospital, University of Copenhagen, Hvidovre, Denmark.