title: ras mutations are uncommon in nasopharyngeal carcinoma.
authors: Department of Zoology, University of Hong Kong.
authors: W C
authors: WC
authors: Yung
authors: J S
authors: JS
authors: Sham
authors: D T
authors: DT
authors: Choy
authors: M H
authors: MH
authors: Ng
mesh_terms: D015139:Blotting, Southern; D011905:Genes, ras / Q000235:genetics*; D006801:Humans; D009154:Mutation; D009303:Nasopharyngeal Neoplasms / Q000235:genetics*; D016133:Polymerase Chain Reaction