[1] Copenhagen Univ Hosp, Rigshosp, Dept Med Endocrinol, DK-2100 Copenhagen, Denmark
[2] Odense Univ Hosp, Dept Endocrinol & Metab, DK-5000 Odense, Denmark
[3] Natl Res Ctr Working Environm, Copenhagen, Denmark
[4] Univ Copenhagen, Inst Publ Hlth, Copenhagen, Denmark