title: Combat plus twenty years. The effect of previous combat experience on psychiatric patients.
mesh_terms: D006801:Humans; D008297:Male; D001523:Mental Disorders / Q000209:etiology; D008890:Military Psychiatry; D013315:Stress, Psychological; D013997:Time Factors; D014481:United States; D014493:United States Department of Veterans Affairs; D014857:Warfare