Establishment of a serum thyroid stimulating hormone (TSH) reference interval in healthy adults. The importance of environmental factors, including thyroid antibodies. - Jensen,E.; Hyltoft Petersen,P.; Blaabjerg,O.; Skov Hansen,P.; Brix,T.H.; Kyvik,K.O.; Hegedüs,L. (Clin Chem Lab Med, 2004)