Case report: Long-term survival in synchronous double primary malignancies of lung adenocarcinomas and esophageal squamous cell carcinoma treated with definitive chemoradiotherapy and SBRT combined with anti-PD-1 - Zeng, Rui; Zhou, Xiaoyun; Ou, Kexin; Chen, Wei; Yang, Chen; Wang, Ting; Li, Yani; Zha, Yawen; Li, Minying; Zhang, Jingjing (Frontiers in Immunology, 2025)