4Levy A, Grauer E, Ben-NathanD , et al. New frontiers in stress research :modulation brain function [M]. Harwood ac- ademic publishers, Amsterdam, 1998.
5Ford JD, Campbell KA, Storzbach D, et al. Posttraumatic stress symptomatology is associated with unexplained illness attributed to Persian Gulf War military service [J]. Psycho- som Med,2001,63(5) :842-849.
6Proctor SP, Harley R, Wolfe J, et al. Health- related quality of life in Persian Guhf War Veterans [J]. Mil Med,200l, 166 (6) :510-519.
7Pflanz S. Psychiatric illness and the workplace: Perspectives for occupational medicine in the military [J]. Mil Med, 1999, 164(6) :401-406.
8CarboneEG, Cigrang JA. Job satisfaction, occupational stress, and personality characteristics of Air Force military training instructors[J]. Mil Med,2001,166(9):800-810.