This is an excellent, current, medical legal update on PTSD and litigation. See footnote #18, reference to older article by Mark Levy MD

http://www.a2lc.com/blog/bid/68973/360-of-ptsd-facts-vs-fiction-in-litigation?source=Blog_Email_%5b360%C2%B0%20of%20PTSD%3A%20Facts%20%5d