We have several evidence-based treatments right now, and usually people recommend about 12 sessions of treatment. If we look at the reality of, for example, the veterans who start these treatments, over half of these veterans don't finish these treatments. I think there's a big individualized response to different treatments. I think the next step in improving treatment outcome is to develop individualized treatments for different people given what symptoms they present with and what difficulties they have. Generally speaking, right now, 12 sessions is generally recommended.
On May 3rd, 2016. See this statement in context.