Feasibility of fast, four- dimensional computed tomography-based O-ring LINAC plans for lung stereotactic body radiotherapy in patients with poor performance status
박천건, Eun Jeong Heo, Minseok Kim, Kyung Hwan Chang, Kwang Hyeon Kim, Jang Bo Shim, Young Je Park, Chul Yong Kim, Nam Kwon Lee, Suk Lee