References
- Skounti, M., & Betts, L. (2011). Prevalence of ADHD subtypes worldwide. Retrieved from http://www.congress-online.com/adhd2011
- Skounti , M. , Philalithis , A. and Galanakis , E. 2007 . Variations in prevalence of attention deficit hyperactivity disorder worldwide . European Journal of Pediatrics , 166 : 117 – 123 .