NFIA and cerebral malformation: The prevalence of intragenic deletions in patients with aplasia or hypoplasia of the corpus callosum and developmental delay suggests that haploinsufficiency of the Nuclear factor I A (NFIA) gene is a primary cause of chromosome 1p32‐p31 deletion syndrome or brain malformations with or without urinary tract defects (MIM 613735) (Bayat et al., 2017; Hollenbeck et al., 2017; Mikhail et al., 2011; Nyboe et al., 2015; Rao et al., 2014).