Antioxidant effects of β-carotene, but not of retinol and vitamin E, in orbital fibroblasts from patients with Graves' orbitopathy (GO) - Rotondo Dottore, G; Ionni, I; Menconi, F; Casini, G; Sellari-Franceschini, S; Nardi, M; Vitti, P; Marcocci, C; Marinò, M (J Endocrinol Invest, 2018)