Ariza JA, Martínez MJM, Olivera MJ, Balsalobre RM. Comparative study of transthoracic ultrasound and chest X-ray in the postoperative period of thoracic surgery. Int Surg J [Internet]. 2017 Aug. 24 [cited 2025 Oct. 24];4(9):2925-31. Available from: https://www.ijsurgery.com/index.php/isj/article/view/1453