Table 1. Example common recurrent pathogenic CNVs associated with GDD/ID [15].

1q21.1 deletion syndrome	16p11.3 duplication syndrome
3q29 deletion syndrome	22q11.2 microduplication syndrome
15q13.3 deletion syndrome	Xq28 duplication syndrome
16p11.2 deletion syndrome	Angelman syndrome
1q21.1 duplication syndrome	DiGeorge/Velocardiofacial syndrome
3q29 duplication syndrome	Potocki-Lupski syndrome
7q11.23 duplication syndrome	Prader-Willi syndrome
15q11-q13 duplication syndrome	Smith-Magenis syndrome
15q13.13 duplication syndrome	Williams-Beuren syndrome