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Dr. Robert Klitzman on What to Consider Before a DNA Test

Wall Street Journal Interview
December 10, 2013

It is important to keep in mind that testing positive for a mutation doesn't always mean that you will get ill. Nor does testing negative always mean you are safe. For example, with Alzheimer's, those who receive a genetic variant from both parents have around a 50% to 60% chance of developing the disease, but these patients account for only about 10% of those who get Alzheimer's.

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