Who knows the history of treatments, diagnosis criteria, for MR (mental retardation)?

Question

I would really appreciated educated responses, resources are appreciated!! =)

Thanks all!

Answer 1

Please follow the links

http://www.cdc.gov/ncbddd/dd/ddmr.htm

http://psychcentral.com/disorders/sx72.h...

http://www.hmc.psu.edu/childrens/healthi...

http://www.nichcy.org/pubs/factshe/fs8tx...