Impact of Preoperative Nutritional Optimization on Surgical Outcomes in Gastrointestinal Cancer Patients. Attahadi Medical Journal, [S. l.], p. 51–58, 2026. DOI: 10.69667/amj.26109. Disponível em: https://attahadi.ly/journal/index.php/amj/article/view/117.. Acesso em: 16 feb. 2026.