A report published in March in The Journal of the American Medical Association found that more than a third of the troops who served in Iraq sought help for mental health problems within a year of returning home. That high percentage is deceptive, however. The report said it is likely that "there are still considerable barriers to care." It referred to a prior study that showed that more than 60 percent of the Iraq veterans who screened positively for generalized anxiety, depression and post-traumatic stress disorder had not sought treatment.