To investigate the expression of thymidylate synthase (TS) and glutathione-s-transferase pi (GST-pi) in esophageal squamous cell carcinoma and their association with the clinicopathologic characteristics.
Department of Oncology and Pathology, The People's Hospital of Taizhou, Taizhou Medical School, Yangzhou & Nantong University, Taizhou 225300, Jiangsu Province, China. huangjunxing@yahoo.com.cn