[1] Slovak Acad Sci, Inst Expt Endocrinol, Lab Human Endocrinol, SK-83306 Bratislava, Slovakia
[2] Slovak Acad Sci, Ctr Mol Med, Bratislava 83101, Slovakia
[3] Hosp Univ Munich, Inst Clin Chem, D-81377 Munich, Germany
[4] Natl Inst Rheumat Dis, Piestany 92112, Slovakia