Adjuvant immunotherapy versus observation after neoadjuvant therapy and esophagectomy for esophageal cancer with residual pathologic disease: a systematic review and reconstructed individual participant data meta-analysis
Background The role of adjuvant immunotherapy after neoadjuvant therapy and esophagectomy remains uncertain. We examined its association with survival in populations composed predominantly of patients with residual disease across neoadjuvant strategies. Methods This systematic review included comparative studies of pos...