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 Leading cause of MR  



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Author5 Posts
  #1

What is related to the leading known cause of mental retardation?
a. substance abuse
b. chromosomal abnormalities
c. iatrogenic reasons
d. autoimmune disease
e. infections




  #2

Hi,
I guess it is substance abuse (Fetal alcohol syndrome).


  #3

Yes, it is the leading known cause. Down Syndrome is second.


  #4

Thanks!


  #5

Yes, Substance abuse is the answer.

Fetal alcohol syndrome is the most common cause and Down and Fragile X Syndromes are most common genetic causes.






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