1. Institute of Endocrine Sciences, University of Milan (L.F., D.M., L.P., P.B.P.), 20122 Milan
2. Istituto Clinico Humanitas (L.F., D.M., P.B.), 20122 Milan
3. Departments of Internal Medicine (N.C.), 27100 Pavia
4. Pediatric Sciences (M.M.), 27100 Pavia
5. Otorhinolaryngology (F.P.), Policlinico S. Matteo IRCCS, University of Pavia, 27100 Pavia
6. Third Pediatric Clinic, HS Raffaele (G.W.), 20142 Milan, Italy
7. Istituto Auxologico Italiano IRCCS (L.P.), 20122 Milan
8. Ospedale Maggiore IRCCS (P.B.P.), 20122 Milan