title: Technique to detect mutated oncogene in preclinical stage.
mesh_terms: D011905:Genes, ras; D005819:Genetic Markers; D006801:Humans; D009154:Mutation; D009369:Neoplasms / Q000175:diagnosis / Q000235:genetics*; D016133:Polymerase Chain Reaction
chemical_list: D005819:Genetic Markers