[1] Univ Zurich Hosp, Dept Internal Med, Med Klin B, CH-8091 Zurich, Switzerland
[2] Univ Zurich Hosp, Dept Internal Med, B Lab 93, CH-8091 Zurich, Switzerland
[3] Univ Zurich, Dept Vet Internal Med, Zurich, Switzerland
[4] Univ Zurich, Inst Biochem, Zurich, Switzerland
[5] Univ Zurich Hosp, Div Hematol, CH-8091 Zurich, Switzerland
[6] Univ Bern, Inst Pathol, Div Immunopathol, Bern, Switzerland