4Hruban RH, van Mansfeld AD, Offehaus GJ, et al. K-ras oncogene activation in adenocacinoma of the human pancreas. A Study of 82 carcinomas vsing a combination of mutant-enriched polymerase chain reaction analysis and allele-specific oligonucleotide hybridization[J]. Am J Pathol, 1993,143(2):545-554.
5Zhang W, Fang X, Mazur W, et al. High-efficiency gene transfer and high-level expression of wild-type p53 in human lung cancer cells mediated by recombinant adenovirus[J]. Cancer Gene Ther, 1994,1(1):5-13.