1. Molecular Cytogenetics Laboratory, Pediatrics Department, University of Padua, Padova, Italy.
2. Pediatrics Department, University of Padua, Padova, Italy.
3. Dipartimento di Neuroscienze e Tecnologie Biomediche, Università degli Studi di Milano-Bicocca, Monza, Italy.
4. Medical Genetics Service, Dolo Hospital, Dolo (Venice), Italy.