Yousef, A., Ahmed, S. T., H Nguyen Wenker, T., Nono-Djotsa, A. B. S., Boyle, S. H., Gifford, E. J., … Helmer, D. A. (2025). Upper gastrointestinal symptoms and Gulf War Illness in a clinical cohort of US veterans: a retrospective, cross-sectional study. BMJ Open Gastroenterology, 12(1), e001859–e001859. https://doi.org/10.1136/bmjgast-2025-001859

Yousef, Abdelrahman, Sarah T. Ahmed, Theresa H Nguyen Wenker, Alice B. S. Nono-Djotsa, Stephen H. Boyle, Elizabeth J. Gifford, Deeksha Malhotra, Helena Chandler, Sandhya Bandi, and Drew A. Helmer. “Upper gastrointestinal symptoms and Gulf War Illness in a clinical cohort of US veterans: a retrospective, cross-sectional study.” BMJ Open Gastroenterology 12, no. 1 (September 2025): e001859–e001859. https://doi.org/10.1136/bmjgast-2025-001859.

Yousef A, Ahmed ST, H Nguyen Wenker T, Nono-Djotsa ABS, Boyle SH, Gifford EJ, et al. Upper gastrointestinal symptoms and Gulf War Illness in a clinical cohort of US veterans: a retrospective, cross-sectional study. BMJ Open Gastroenterology. 2025 Sep;12(1):e001859–e001859.

Yousef, Abdelrahman, et al. “Upper gastrointestinal symptoms and Gulf War Illness in a clinical cohort of US veterans: a retrospective, cross-sectional study.” BMJ Open Gastroenterology, vol. 12, no. 1, BMJ, Sept. 2025, pp. e001859–e001859. Crossref, doi:10.1136/bmjgast-2025-001859.

Yousef A, Ahmed ST, H Nguyen Wenker T, Nono-Djotsa ABS, Boyle SH, Gifford EJ, Malhotra D, Chandler H, Bandi S, Helmer DA. Upper gastrointestinal symptoms and Gulf War Illness in a clinical cohort of US veterans: a retrospective, cross-sectional study. BMJ Open Gastroenterology. BMJ; 2025 Sep;12(1):e001859–e001859.