Alharthi, R., Ashgar, O., M. AlBarakati, A., A. Alhazmi, S., S. Almuhaisen, A., A. Alharbi, S., Mohamed Jalal, Z., Saeed Alzahrani, M., Ali Medkhali, S., Abdullah Kariri, J., F. Almwalad, R., Ali Alghamdi, A. and Aljiffry, M. (2026) “Impact of preoperative immunonutrition on postoperative outcomes in gastrointestinal cancer surgery: a systematic review and meta-analysis: Impact of preoperative immunonutrition in gastrointestinal cancer surgery”, Saudi Medical Horizons Journal, 6(2), pp. 258–274. doi: 10.54293/smhj.v6i2.197.