title: Combat stress reaction: a concept in evolution.
mesh_terms: D003130:Combat Disorders / Q000266:history / Q000523:psychology* / Q000628:therapy; D005060:Europe; D049673:History, 20th Century; D006801:Humans; D007723:Korea; D008887:Military Medicine; D011613:Psychotherapy; D013313:Stress Disorders, Post-Traumatic / Q000523:psychology*; D014481:United States / Q000208:ethnology; D014744:Vietnam