Duplication of the Williams-Beuren critical region: Case report and further delineation of the phenotypic spectrum

1. Orellana, C.
2. Bernabeu, J.
3. Monfort, S.
4. Roselló, M.
5. Oltra, S.
6. Ferrer, I.
7. Quiroga, R.
8. Martínez-Garay, I.
9. Martínez, F.