Nodules in autoimmune thyroiditis are associated with increased risk of thyroid cancer in surgical series but not in cytological series: Evidence for selection bias - Castagna, M G; Belardini, V; Memmo, S; Maino, F; Di Santo, A; Toti, P; Carli, A F; Caruso, G; Pacini, F (J Clin Endocrinol Metab, 2014)