Subclinical Visual Field Alterations are Commonly Present in Patients with Graves' Orbitopathy and are Mainly Related to the Clinical Activity of the Disease - Labonia, A F; Carnovale-Scalzo, G; Paola, A; De' Morelli, G; Scorcia, V; Bruzzichessi, D; Scorcia, G; Costante, G (Experimental and Clinical Endocrinology & Diabetes, 2008)