I'm not the same poster as above but a bit of Googling turned up several sources that appear reputable though I didn't dig real deep. I have no dog in this figh

I'm not the same poster as above but a bit of Googling turned up several sources that appear reputable though I didn't dig real deep. I have no dog in this fight whatsoever but here's a link to one that I found interesting & that seems to have been well-conducted at first glance: http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0044864 http://journals.plos.org/plosone/article?id=10.1371/journal....