VNTR and ins/del 6 bp genotypes varied with tumour anatomical site : 2R/2R genotype was rare in left-sided tumours ( 7.0 % vs. 26.3 % of right-sided and 24.1 % of rectal cancers ; P < 0.01 ) , where the variant allele 6- was very frequent ( 69.0 % ) .
O O B-SequenceVariant I-SequenceVariant I-SequenceVariant O O O B-DiseaseOrPhenotypicFeature O O O O O O O O O B-DiseaseOrPhenotypicFeature O O O O O O O O O O O O B-DiseaseOrPhenotypicFeature I-DiseaseOrPhenotypicFeature O O O O O O O O O O O O O O O O O O O