RETRACTED: Cytotoxicity of HSVtk and hrTNF-α fusion genes with IRES in treatment of gastric cancer

This article has been retracted at the request of the Editor-in-Chief and Author. Please see Elsevier Policy on Article Withdrawal (http://www.elsevier.com/locate/withdrawalpolicy).Reason: This article is a duplicate of a paper that has already been published in Cancer Biol. Ther., 3 (2004) 1075–1080. One of the conditions of submission of a paper for publication is that authors declare explicitly that the paper is not under consideration for publication elsewhere.