Díaz Herrera W, Osorio Zambrano HF, Sandoval Cabrera MF. Nasogastric tube insertion using esophageal guide in anesthetized patients at University Hospital in Neiva. RFS [Internet]. 2016 Jul. 1 [cited 2024 May 4];8(2):21-5. Available from: https://journalusco.edu.co/index.php/rfs/article/view/1806