Kilic, Erol, and Mustafa Ugur. 2021. “Can Postoperative Atelectasis Be Prevented by Local Bupivacaine Infusion Infiltration After Emergency Upper Midline Laparotomy? Randomized Clinical Trial ”. Annals of Medical Research 26 (9): 1820-24. http://www.annalsmedres.org/index.php/aomr/article/view/1731.