Yes. I'm not a researcher, so I'm not the one to give you numbers. I can tell you that, as I said, everybody I've seen who does PE, prolonged exposure, has a graph just like those. They move on, and then I lose them. I don't see them anymore; they just move on.
John and Mary are too recent, but I'm sure it's going to work for them, too. In the case of the sailor in his seventies, he was reassessed a year later by an independent person and was found to be still symptom-free. It really works.