Definition, Classification and Diagnosis of Diabetes Mellitus - Schleicher, Erwin; Gerdes, Christian; Petersmann, Astrid; Müller-Wieland, Dirk; Müller, Ulrich A.; Freckmann, Guido; Heinemann, Lutz; Nauck, Matthias; Landgraf, Rüdiger (Experimental and Clinical Endocrinology & Diabetes, 2022)