Efficacy and safety of three different cumulative doses of intravenous methylprednisolone for moderate to severe and active Graves' orbitopathy - Bartalena, L; Krassas, G E; Wiersinga, W; Marcocci, C; Salvi, M; Daumerie, C; Bournaud, C; Stahl, M; Sassi, L; Veronesi, G; Azzolini, C; Boboridis, K G; Mourits, M P; Soeters, M R; Baldeschi, L; Nardi, M; Curro, N; Boschi, A; Bernard, M; von Arx, G (J Clin Endocrinol Metab, 2012)