Clinical Features, Treatment Modalities, and Outcomes of Elderly Thymoma Patients: A Propensity-Matched Study Based on the SEER Database. - Wang, Zhidong; Gong, Cheng; Zhang, Youpu; Wang, Min; Chao, Ce; Qian, Yongxiang; Di, Dongmei; Wang, Bin (Oncology Research & Treatment, 2023)