[1] Sahlgrens Univ Hosp, Dept Clin Chem, Gothenburg, Sweden
[2] Univ Gothenburg, Inst Biomed, Gothenburg, Sweden
[3] Univ Hosp Ulm, Dept Internal Med 3, Ulm, Germany
[4] Univ Gothenburg, Sahlgrenska Acad, Inst Biomed, Gothenburg, Sweden
[5] Hannover Med Sch, Dept Hematol Hemostasis Oncol & Stem Cell Transpl, Hannover, Germany