2.2. Selection and Exclusion Criteria
atelectasis, anesthesia-induced
ATELECTASIS
Eligible patients were American Society of Anesthesiologists (ASA) I-II patients aged between 18 and 75 years who were scheduled for laparoscopic cholecystectomy. There are patient-induced, surgical-induced, and anesthesia-induced risk factors in the development of perioperative atelectasis [