1. Istituto di Genetica Molecolare “Luigi Luca Cavalli‐Sforza” (IGM) CNR Pavia Italy
2. Dipartimento Neuroscienze Pediatriche Fondazione IRCCS Istituto Neurologico Carlo Besta Milano Italy
3. Genetic Counseling Service, Department of Pediatrics Regional Hospital of Bolzano Bolzano Italy
4. Department of Medical Genetics, Cumming, School of Medicine University of Calgary Calgary Alberta Canada