[1] Univ Aarhus, Aarhus Univ Hosp, Danish Epidemiol Sci Ctr, Dept Epidemiol & Social Med, Aarhus, Denmark
[2] Univ Aarhus, Aarhus Univ Hosp, Dept Internal Med 4, Aarhus, Denmark
[3] Aalborg Hosp, Dept Internal Med M, Aalborg, Denmark
[4] Odder Hosp, Dept Internal Med, Odder, Denmark