1. F. Hoffmann-La Roche Ltd; Basel; Switzerland
2. Department of Pediatrics; University of Erlangen-Nuremberg; Erlangen
3. Clinical Endocrinology; Charité Campus Mitte; Charité University Medicine Berlin; Berlin
4. Department of Pediatrics; University of Cologne; Cologne; Germany
5. Endocrinology; School of Clinical & Experimental Medicine; University of Birmingham; Birmingham; UK