1. From the Department of Infectious Diseases 8632 (A.R.), University of Copenhagen, Denmark
2. Rigshospitalet, Department of Infectious Diseases 144, Amager Hvidovre Hospital (D.M.K.-K.), University of Copenhagen, Denmark
3. Department of Epidemiology Research, Statens Serum Institut, Denmark (T.L.D.)
4. CHIP, Department of Infectious Diseases, Section 2100 (J.L.), University of Copenhagen, Denmark
5. Institute for Global Health, UCL, London, United Kingdom (C.A.S., A.N.P.)
6. Faculty of Health and Medical Sciences (B.G.N., S.A.), University of Copenhagen, Denmark
7. Department of Clinical Biochemistry (B.G.N., S.A.), Herlev and Gentofte Hospital, Copenhagen University Hospital, Denmark.
8. The Copenhagen General Population Study (B.G.N., S.A.), Herlev and Gentofte Hospital, Copenhagen University Hospital, Denmark.