About a quarter of U.S. service members and veterans who start psychotherapy for post-traumatic stress disorder (PTSD) quit before they finish treatment, according to a recent study, with experts pushing for more effective long-term approaches to sustain mental health treatments. The study, titled “The Protocol Matters: A Meta-analysis of Psychotherapy Dropout from Specific PTSD Treatment Approaches in U.S. Service Members and Veterans,” was published in mid-November in the journal