Chalder, T., Hotopf, M., Unwin, C., Hull, L., Ismail, K., David, A., & Wessely, S. (2001). Prevalence of Gulf war veterans who believe they have Gulf war syndrome: Questionnaire study. BMJ.
Chicago Style aipamenaChalder, T., M. Hotopf, C. Unwin, L. Hull, K. Ismail, A. David, and S. Wessely. Prevalence of Gulf War Veterans Who Believe They Have Gulf War Syndrome: Questionnaire Study. BMJ, 2001.
MLA aipamenaChalder, T., et al. Prevalence of Gulf War Veterans Who Believe They Have Gulf War Syndrome: Questionnaire Study. BMJ, 2001.
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