1. From the Departments of Pediatrics (C.J., K.L., U.H., O.M.), D-35033, Germany
2. University Children’s Hospitals, Heidelberg, D-69120 Giessen (W.B.), D-35033, Germany
3. Research Center of Endocrinology and Metabolism (C.O.), Sahlgrenska Hospital, University of Göteborg, Sweden S-41345
4. D-35392, Marburg (G.K.), D-35033, Germany