[1] Aarhus Univ Hosp, Dept Rheumatol, Aarhus, Denmark
[2] Aarhus Univ, Dept Clin Med, Aarhus, Denmark
[3] Aarhus Univ Hosp, Dept Clin Microbiol, Aarhus, Denmark
[4] Aarhus Univ Hosp, Dept Clin Immunol, Aarhus, Denmark
[5] Aarhus Univ, Dept Biomed, Aarhus, Denmark
[6] Rigshosp, Dept Clin Immunol, Sect 7631, Aarhus, Denmark