Institution: | (1) Department of Medicine, Division of Endocrinology, Helsinki University Central Hospital, P.O.BOX 340, FIN-00029 HYKS, Helsinki, Finland e-mail: sami.mustajoki@helsinki.fi, Tel.: +3589 471 2324, Fax: +3589 471 4012, FI;(2) Department of Clinical Chemistry, Odense University Hospital, DK-5000 Odense C, Denmark, DK |