A hypoechoic pattern of the thyroid at ultrasound does not indicate autoimmune thyroid diseases in patients with morbid obesity - Rotondi, M; Cappelli, C; Leporati, P; Chytiris, S; Zerbini, F; Fonte, R; Magri, F; Castellano, M; Chiovato, L (Eur J Endocrinol, 2010)