PGAD: I did a little reading so that I could answer your question. This is an area that I do not have expertise. I did not see trauma listed as a cause - but little is known about the causes - so can't really say one way or another.
Answered 10/17/2015
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A doctor has provided 1 answer
A doctor has provided 1 answer
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A doctor has provided 1 answer
2 doctors weighed in across 2 answers
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