Szafranski et al. (2010) investigated 55 patients with small microduplications involving CHRNA7; however, complete clinical descriptions were available only for 11 patients and included DD/ID, muscular hypotonia, and a variety of neuropsychiatric disorders (ASD, ADHD, BD, anxiety, and severe pica) [14]. This evidence concerns the gene CHRNA7 and attention deficit-hyperactivity disorder.