Ju, K.-H., H.-J. Kim, S.-H. Kim, and Y.-J. Liu. “Treatment of Spontaneous Pneumothorax by Using the Video Assisted Thoracoscopic Surgery and Mini Invasive Thoracoscopic Surgery”. International Journal of Clinical and Experimental Physiology, Vol. 5, no. 4, Mar. 2019, pp. 208-10, doi:10.5330/ijcep.2018.5.4.24.