1. Allanson, J.E., Cunniff, C., Hoyme, H.E., McGaughran, J., Muenke, M., Neri, G., 2009. Elements of morphology: standard terminology for the head and face. Am. J. Med. Genet. A. Jan;149A(1), 6-28. doi: 10.1002/ajmg.a.32612.
2. Diagnostic and statistical manual of mental disorders;American Psychiatric Association,2013
3. American Psychiatric Association, 1994. Diagnostic and statistical manual of mental disorders (4th ed.) Washington, DC: Author.
4. American Psychiatric Association, 2000. Diagnostic and statistical manual of mental disorders (4th ed., text rev.) Washington, DC: Author.
5. Effects of age on brain volume and head circumference in autism;Aylward;Neurology,2002