RT Journal T1 POsttraumatic stress disorder and cognitive behavioral therapy JF JAMA JO JAMA YR 2007 FD June 27 VO 297 IS 24 SP 2694 OP 2695 DO 10.1001/jama.297.24.2694 UL http://dx.doi.org/10.1001/jama.297.24.2694 AB