There really hasn't been. We can argue, our colleagues Greg Passey, Cam Ritchie ...there's certainly a split within the community. People I respect hold one view versus the other. It's a contentious issue within medicine.
Again, suicide is extremely complicated. With our Afghanistan cohort, if you were taking mefloquine, if you were taking anti-malarials that was during the summer, the fighting season. If you try to study the group that had mefloquine or anti-malarials or not, you've also got the confounders of trauma exposure. The winter season—if you look at casualties killed in action, PTSD rates were in April and May on, in 2006 and 2007. I was there, There's a shift in all the other confounding factors; there's also permethrin in the clothing. People who have permethrin in the clothing may have had a higher rate of PTSD, and PTSD can certainly mediate in the suicide. I don't think it's as clear.... It would be an incredibly difficult thing to study because of all the other confounding factors and the trauma exposure and things.