Partial trisomy 21 map: Ten cases further supporting the highly restricted Down syndrome critical region (HR-DSCR) on human chromosome 21

Maria Chiara Pelleri, Elena Cicchini, Michael B. Petersen, Lisbeth Tranebjærg, Teresa Mattina, Pamela Magini, Francesca Antonaros, Maria Caracausi, Lorenza Vitale, Chiara Locatelli, Marco Seri, Pierluigi Strippoli, Allison Piovesan^*, Guido Cocchi