The Giessen-Bad Oeynhausen familiy study: Improved prediction of type-1 diabetes in a low incidence population of relatives using combinations of islet autoantibodies in a dual step model. - Jaeger,C.; Hatziagelaki,E.; Stroedter,A.; Becker,F.; Scherer,S.; Petzoldt,R.; Federlin,K.; Bretzel,R.G. (Exp Clin Endocrinol Diabetes, 1999)