CHD2 and Febrile seizure (within the age range of 3 months to 6 years): In general, MS, GTCS, AtS, febrile seizures (FS), absence seizures (AbS), FoS, atypical absence seizures (aAS), and eyelid myoclonia with absence (EMA) were the main seizure types in CHD2 non-CNVs (Table 2 and Supplementary Table S2).