Mortality from heart disease following radiotherapy in esophageal carcinoma: a retrospective cohort study in US SEER cancer registry

Department of Clinical Medicine, Yangzhou University Medical College, Yangzhou 225001, China; Department of Clinical Medicine, The Second Clinical College of Dalian Medical University, Dalian 116044, China; Department of Oncology, Department of Hepatobiliary and Pancreatic Surgery, Northern Jiangsu People’s Hospital, Clinic Medical College of Yangzhou University, Yangzhou 225001, China Contributions: (I) Conception and design: J Yao; (II) Administrative support: X Zhang; (III) Provision of study materials or patients: H Zhai; (IV) Collection and assembly of data: L Li; (V) Data analysis and interpretation: H Ya; (VI) Manuscript writing: All authors; (VII) Final approval of manuscript: All authors. These authors contributed equally to this work. Correspondence to: Jie Yao. Department of Hepatobiliary and Pancreatic Surgery, Northern Jiangsu People’s Hospital, Clinic Medical College of Yangzhou University, Yangzhou 225001, China. Email: docyao@hotmail.com.