In Family 1, Affymetrix 6.0 chips and Agilent 1 M microarrays were hybridized as previously described (10 (link)) (Santa Clara, CA). Agilent 244 k arrays were performed on individual CDH12. Birdsuite (broadinstitute.org) and Agilent Feature Extraction (10.7.3.1), respectively, were used to generate CNV calls. Clinical microarrays were obtained on 2-II-1 [ClariSure CGH, Quest Diagnostics (Madison, NJ)], 2-II-2 and 2-II-3 [GenomeDx v5, GeneDx (Gaithersburg, MD)].