We observed a strong association between gastric cancer occurrence , impaired DNA repair in human lymphocytes and the G/C genotype of the G135C polymorphism of the RAD51 gene .
O O O O O O B-DiseaseOrPhenotypicFeature I-DiseaseOrPhenotypicFeature O O O O O O B-OrganismTaxon O O O B-SequenceVariant O O O B-SequenceVariant O O O B-GeneOrGeneProduct O O