Impact of routine measurement of serum calcitonin on the diagnosis and outcome of medullary thyroid cancer: experience in 10 864 patients with nodular thyroid disorders. - Elisei,R.; Bottici,V.; Luchetti,F.; Di Coscio,G.; Romei,C.; Grasso,L.; Miccoli,P.; Iacconi,P.; Basolo,F.; Pinchera,A.; Pacini,F. (J Clin Endocrinol Metab, 2004)