CONCLUSION : These findings do not support a functional significance of ADRA2B indel polymorphism at position -4825 relative to the start codon in the far upstream region of the promoter in the present migraine subjects .
O O O O O O O O O O O B-GeneOrGeneProduct B-SequenceVariant I-SequenceVariant I-SequenceVariant I-SequenceVariant I-SequenceVariant O O O O O O O O O O O O O O O O B-DiseaseOrPhenotypicFeature O O