No, there has been..: No. There has been no known proven study to address this concern as far as what I have read and studied over the past 45 yrs. Of course, some controversy for something is always present by realizing: behind what we know always hides a lot of what we still don't know.
Answered 4/27/2014
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4 doctors weighed in across 2 answers
4 doctors weighed in across 2 answers
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