Codon 17 polymorphism of the CTLA4 gene in Hashimoto's thyroiditis and Addison's disease. - Donner,H.; Braun,J.; Seidl,C.; Rau,H.; Finke,R.; Ventz,M.; Walfish,P.G.; Usadel,K.H.; Badenhoop,K. (J Clin Endocrino Metab, 1997)