Multi-site evaluation of a complementary, spiritually-based intervention for Veterans: The Mantram Repetition Program.

Background: Mental and physical symptoms affect Veterans' quality of life. Despite available conventional treatments, an increasing number of Veterans are seeking complementary approaches to symptom management. Research on the Mantram Repetition Program (MRP), a spiritually-based intervention, has shown significant improvements in psychological distress and spiritual well-being in randomized trials.