In a recent publication, doctors and researchers at the Boston Children's Hospital recommended whole exome sequencing as the first-tier diagnostic for children with neurodevelopmental conditions, including autism, global developmental delay and intellectual disability. Autism, global developmental delay, or intellectual disability, may be a symptom of an underlying, more serious condition and hence it is particularly beneficial to patients with any of these diagnoses. In fact, research shows that the cause of autism is likely to be 80%-90% genetic.