ليلى س. “Assessment of Pulmonary Aspiration Among Intensive Care Patients Having Enteral Feeding by Using Nasogastric Tube”. Tishreen University Journal -Medical Sciences Series, vol. 45, no. 5, Dec. 2023, pp. 19-29, https://journal.tishreen.edu.sy/index.php/hlthscnc/article/view/15958.