Proctor, S. P., R. F. White, T. Heeren, F. Debes, B. Gloerfelt-Tarp, M. Appleyard, T. Ishoy, B. Guldager, P. Suadicani, F. Gyntelberg, and D. M. Ozonoff. 2003. Neuropsychological functioning in Danish Gulf War veterans. Journal of Psychopathology and Behavioral Assessment 25(2):85-93.
Proctor, S. P., K. J. Heaton, T. Heeren, and R. F. White. 2006. Effects of sarin and cyclosarin exposure during the 1991 Gulf War on neurobehavioral functioning in US Army veterans. Neurotoxicology 27(6):931-939.
RAND Corporation. 2010. 12-Item Short Form Health Survey (SF-12). http://www.rand.org/health/surveys_tools/mos/mos_core_12item.html (accessed January 5, 2010).
Reid, S., M. Hotopf, L. Hull, K. Ismail, C. Unwin, and S. Wessely. 2001. Multiple chemical sensitivity and chronic fatigue syndrome in British Gulf War veterans. American Journal of Epidemiology 153(6):604-609.
Rose, M. R., M. K. Sharief, J. Priddin, V. Nikolaou, L. Hull, C. Unwin, R. Ajmal-Ali, R. A. Sherwood, A. Spellman, A. David, and S. Wessely. 2004. Evaluation of neuromuscular symptoms in UK Gulf War veterans: A controlled study. Neurology 63(9):1681-1687.
Sharief, M. K., J. Priddin, R. S. Delamont, C. Unwin, M. R. Rose, A. David, and S. Wessely. 2002. Neurophysiologic analysis of neuromuscular symptoms in UK Gulf War veterans: A controlled study. Neurology 59(10):1518-1525.
Sim, M., M. Abramson, P. A. Forbes, D. Glass, J. Ikin, P. Ittak, H. Kelsall, K. Leder, D. McKenzie, and J. McNeil. 2003. Australian Gulf War Veterans' Health Study. Canberra, Australia: Department of Veterans’ Affairs.
Simmons, R., N. Maconochie, and P. Doyle. 2004. Self-reported ill health in male UK Gulf War veterans: A retrospective cohort study. BMC Public Health 4(1):27.
Spencer, P. S., L. A. McCauley, J. A. Lapidus, M. Lasarev, S. K. Joos, and D. Storzbach. 2001. Self-reported exposures and their association with unexplained illness in a population-based case-control study of Gulf War veterans. Journal of Occupational and Environmental Medicine 43(12):1041-1056.
Statistics Canada. 2005. The Canadian Persian Gulf Cohort Study: Detailed Report. Ottawa, Ontario: Minister of Industry.
Steele, L. 2000. Prevalence and patterns of Gulf War illness in Kansas veterans: Association of symptoms with characteristics of person, place, and time of military service. American Journal of Epidemiology 152(10):992-1002.
Stimpson, N. J., C. Unwin, L. Hull, T. David, S. Wessely, and G. Lewis. 2006. Prevalence of reported pain, widespread pain, and pain symmetry in veterans of the Persian Gulf War (1990-1991): The use of pain manikins in Persian Gulf War health research. Military Medicine 171(12):1181-1186.
Stretch, R. H., P. D. Bliese, D. H. Marlowe, K. M. Wright, K. H. Knudson, and C. H. Hoover. 1995. Physical health symptomatology of Gulf War-era service personnel from the states of Pennsylvania and Hawaii. Military Medicine 160(3):131-136.
Stretch, R. H., P. D. Bliese, D. H. Marlowe, K. M. Wright, K. H. Knudson, and C. H. Hoover. 1996a. Psychological health of Gulf War-era military personnel. Military Medicine 161(5):257-261.