Sylvia Noviani Saing, Satria G, Bermansyah, Irfannuddin. Effectiveness of Preoperative Incentive Spirometry in Patients Following Elective Thoracotomy for Prevention of Postoperative Pulmonary Complication. sjs [Internet]. 2021Jun.17 [cited 2024Dec.22];4(2):422-3. Available from: https://sriwijayasurgery.com/index.php/sjs/article/view/66