Autism spectrum disorder (ASD) is a lifelong developmental
disability defined by diagnostic criteria that include deficits in
social communication and social interaction and restricted,
repetitive patterns of behavior, interests, or activities (1).
Initial signs and symptoms typically are apparent in the early
developmental period; however, social deficits and behavioral
patterns might not be recognized as symptoms of ASD until
a child is unable to meet social, educational, occupational, or
other important life stage demands. Functional limitations
vary among persons with ASD and might develop over time