High relative incidence of heterozygous intragenic deletions within IMMP2L have also been identified in ASD and in normal ‘neurotypical’ populations (Table 2 and Table 3) [40,40,44,47] casting uncertainty on their role if any in ASD or other related neurodevelopmental disorders such as GTS and ADHD (Table 1, Table 2 and Table 3). This evidence concerns the gene IMMP2L and Tourette syndrome.