| epstein-barr virus detection in tumors of upper gastrointestinal tract. an in situ hybridization study in pakistan. | to examine the potential role of epstein-barr virus (ebv) in the carcinogenesis of upper gastrointestinal tract, we conducted an in situ hybridization assay for ebv-encoded small rna (eber) expression in the tumors of 56 oral and 50 esophageal squamous cell carcinoma (scc) cases, and 52 stomach adenocarcinoma cases diagnosed in the king edward medical college and allama iqbal medical college lahore, pakistan between 1996-2002. there were no malignancies with positive eber expression in oral and ... | 2005 | 16270524 |