Analysis of Correlation between the Process of Thyroid Fibrosis and TGFB1 Gene Expression Level in Fine-needle Aspiration Biopsy (FNAB) Thyroid Specimens Collected from Patients with Hashimoto's Thyroiditis and Non-toxic Goitre - Cyniak-Magierska, A.; Januszkiewicz-Caulier, J.; Brzeziańska, E.; Lewiński, A. (Experimental and Clinical Endocrinology & Diabetes, 2010)