There are several limitations in the current study: (1) this study was retrospective, observational, and nonrandomized, and may therefore be prone to selection or information bias; (2) a relatively small number of patients were enrolled in the current study, thereby several outcomes with marginal significance in our study might have statistical significance in reality.
← all excerpts
Tumor regression grade combined with lymph node status in esophageal squamous cell carcinoma after neoadjuvant chemoradiotherapy.
1
—
—