The brain effects are also variable and range from normal intelligence to severe mental retardation.
Some are only mildly afflicted, while others have severe mental retardation.
About 3 in 1,000 people suffer from moderate or severe mental retardation.
In most cases, mild to severe mental retardation is also present.
Several of these twelve were born with severe mental retardation.
Most patients end up with mild to severe mental retardation, which is usually already present before surgery.
They also include severe mental retardation and serious heart defects that can be lethal.
Yet even people with severe mental retardation show a high level of curiosity in certain circumstances.
However, the disorder is typically associated with moderate to severe mental retardation.
In many areas, these terms have been replaced by use of "moderate" and "severe" mental retardation.
The game would suffer serious delays in its production.
"In the end, the way interest rates are fluctuating, a serious delay could cost a mint."
The most serious delays now, he said, are caused by protesting soldiers.
There were also serious delays in the production of the components.
Traffic is down to one lane each way, and the state says "serious delays" are to be expected.
The Shadow must risk it; but he had met with serious delay.
It was a run that ho had made more than thirty times already, without a single accident of any kind and with no serious delays.
There were many difficult places that we had passed through, and each would be a source of serious delay to the animals.
Children with Williams syndrome often display serious delays in learning to count.
Vista launched at the beginning of 2007, after serious delays and seven years in development.
This would be the beginning of a series of severe delays.
This followed severe delays after Bird suffered a seizure during the trial, his third since 2008.
If you have one airport with severe delays or a ground stop, that's a problem.
He has severe developmental delays and depends on an electric feeding tube for nourishment.
They are sometimes restless, behavior problems, seizures and severe delay in language development.
He said that his daughter Morgan, who has a severe cognitive delay, inspired the creation of the park.
Moreover, the regulation is of course also being extended to cover severe delays and flight cancellations.
This deadline is of vital importance, because we have seen severe delays at this stage in the past.
Although shipping movements on the ship canal are far less frequent than in years past, they can cause severe delay to local road traffic.
It's not so much a slow taxi up the spending runway, but a severe delay.
