2171 Original Article A nomogram to predict the overall survival of patients with symptomatic extensive-stage small cell lung cancer treated with thoracic radiotherapy Xun Yuan1#, Zhiqin Zheng2,3#, Fangfang Liu1, Yuan Gao1, Wenhui Zhang4, Rossana Berardi5, Pranshu Mohindra6, Zhengfei Zhu2,7,8, Jie Lin4, Qian Chu1 1Department of Oncology, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China; 2Department of Radiation Oncology, Fudan University Shanghai Cancer Center, Shanghai, China; 3Department of Radiation Oncology, Minhang Branch Hospital, Fudan University Shanghai Cancer Center, Shanghai, China; 4Department of Oncology, The Second Affiliated Hospital of Kunming Medical University, Kunming, China; 5Clinica Oncologica, Università Politecnica delle Marche, Azienda Ospedaliero-Universitaria Ospedali Riuniti Umberto I, GM Lancisi, G Salesi di Ancona, Italy; 6Department of Radiation Oncology, University of Maryland School of Medicine, Baltimore, MD, USA; 7Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China; 8Institute of Thoracic Oncology, Fudan University, Shanghai, China Contributions: (I) Conception and design: X Yuan, Q Chu; (II) Administrative support: R Berardi, P Mohindra; (III) Provision of study materials or patients: Z Zheng, F Liu; (IV) Collection and assembly of data: Y Gao, W Zhang; (V) Data analysis and interpretation: Z Zhu, J Lin; (VI) Manuscript writing: All authors; (VII) Final approval of manuscript: All authors. #These authors contributed equally to this work. Correspondence to: Qian Chu, MD, PhD. Department of Oncology, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Avenue, Wuhan 430030, China. Email:
[email protected]; Jie Lin, MD. Department of Oncology, the Second Affiliated Hospital of Kunming Medical University, 374 Dianmian Avenue, Wuhua District, Kunming 650101, China.