Efficacy and safety of PD-1 inhibitor combined with chemotherapy for recurrent esophageal squamous cell carcinoma in the elderly
SHI Yuxi, GU Dayong, ZHOU Lei, LIU Wenqian, WEN Linchun, YE Jinjun
Practical Geriatrics . 2026, (5): 484 -489 .  DOI: 10.3969/j.issn.1003-9198.2026.05.010