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Tumor antigen gene expression in esophagus tumor biopsies. (a) Gene expression in tumor samples is compared to the expression in normal esophagus tissue. Gene expression changes less than 10-fold in magnitude are not shown. Frequency of gene expression in the 16 tumor biopsies is shown on the right hand side of the figure. (b) Frequency of overall tumor antigen expression in the 16 tumor biopsies is shown.
