1. Department of Pediatrics; University of Torino; Torino; Italy
2. Laboratory of Medical Cytogenetics and Molecular Genetics; Istituto Auxologico Italiano; Cusano Milanino; Italy
3. Department of Environmental Science; Second University of Naples; Caserta; Italy
4. Ambulatorio di Genetica, Clinica Pediatrica; Università Milano Bicocca, A.O. S. Gerardo Fondazione MBBM; Monza; Italy
5. Department of Medical Sciences; University of Torino; Torino; Italy