OC01.04: The risk of 22q11.2 deletion in fetuses with a right aortic arch and a normal heart. (1st October 2015) - Volpe, N.; Perolo, A.; De Robertis, V.; Cataneo, I.; Campobasso, G.; Frusca, T.; Ghi, T.; Pilu, G.; Volpe, P.