OC01.05: Pre‐ and postnatally detected isolated ventricular septum defects and the association with chromosomal aberrations – a nationwide register‐based study from Denmark. (15th October 2020) - Vedel, C.; Rode, L.; Joergensen, F.S.; Petersen, O.B.; Sundberg, K.; Tabor, A.; Ekelund, C.K.