Comparative evaluation of serum zinc level in head and neck cancer patients before and after radiation therapy.

Background: Head and neck cancers (HNCs) include 5.3% of all cancers and they are the cause of the same 5.3% of cancer deaths.

Post-neoadjuvant chemoradiotherapy tumor resectability following induction chemotherapy in locally advanced proximal gastric and adenocarcinoma of the esophagogastric junction: A clinical trial.

Background: Pre-operative chemoradiotherapy (NACRT) of patients with proximal gastric and esophagogastric junction (EGJ) adenocarcinoma may result in increased local control and improved patients' survival rate. This study aimed to investigate the effect of NACRT on resectability of tumor in patients with proximal gastric and EGJ adenocarcinoma.

Methods: In this single-arm clinical trial, patients with locally advanced proximal gastric and EGJ adenocarcinoma were included.