Sagar, Ramesh C., K. V. Veerendra Kumar, S. D. Madhu, and M. Malathi. “A Prospective Study of Number of Attempts Required in Conventional Image Guided Transthoracic Fine Needle Aspiration for Pulmonary Lesions”. International Surgery Journal 6, no. 3 (February 25, 2019): 969–974. Accessed October 29, 2025. https://www.ijsurgery.com/index.php/isj/article/view/3657.