Cyclosporine and prednisone v. prednisone in treatment of Graves’ ophthalmopathy: a controlled, randomized and prospective study - Kahaly, G; Schrezenmeir, J; Krause, U; Schweikert, B; Meuer, S; Muller, W; Dennebaum, R; Beyer, J (Eur J Clin Invest, 1986)