Health status of Persian Gulf War veterans: self-reported symptoms, environmental exposures and the effect of stress.
Proctor SP, Heeren T, White RF, Wolfe J, Borgos MS, Davis JD, Pepper L, Clapp R, Sutker PB, Vasterling JJ, Ozonoff D. Health status of Persian Gulf War veterans: self-reported symptoms, environmental exposures and the effect of stress. Int J Epidemiol. 1998 Dec; 27(6):1000-10.