1. Department of Radiation Oncology Sun Yat‐sen University Cancer Center State Key Laboratory of Oncology in South China Collaborative Innovation Center of Cancer Medicine Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy Guangzhou Guangdong People's Republic of China
2. Department of Gastric Surgery Sun Yat‐sen University Cancer Center State Key Laboratory of Oncology in South China Guangzhou Guangdong People's Republic of China