1. Learning disabilities, dyslexia, and vision;American Academy of Pediatrics (AAP);Pediatrics,2009
2. American Academy of Pediatrics (AAP) 2010 http://www.healthychildren.org/English/health-issues/conditions/learning-disabilities/pages/ Common-Learning-Disabilities.aspx
3. American Association on Intellectual and Developmental Disabilities (AAIDD) Intellectual disabilities http://www.aaidd.org