To study the combined effect of TS polymorphisms , four categories were defined accordingly to the level of expression attributed to SNP and ins/del 6 bp genotypes : C_allele 6- , C_6+/6+ , G_allele6- and G_6+/6+ .
O O O O O O B-GeneOrGeneProduct O O O O O O O O O O O O O O O O B-SequenceVariant I-SequenceVariant I-SequenceVariant O O O O O O O O O O O