Mental Retardation (MR)
 
AAIDD Home Page
The Arc of the United States
BehaveNet® Clinical Capsule™: Mental Retardation
American Academy of Child & Adolescent Psychiatry
Disability Info: Mental Retardation Fact Sheet (FS8)
Mental Retardation: A Symptom and a Syndrome
Mental Retardation, DD, NCBDDD, CDC