Methods: Telomerase activity was detected by Telomeric Repeat Amplification Protocol(TRAP) assay in 30 cases of the matched tumor tissues and 14 cases of tumor adjacent tissues.

• 方法：应用端粒重复序列扩增法，对30例食管拉网细胞标本及相应的癌组织和癌旁正常食管组织进行检测。