Despite the application of this high-throughput genotyping method , negative results from the two-stage DNA pooling design used to screen loci within the TPH , AADC and MAOA genes did not support their role in migraine susceptibility .
O O O O O O O O O O O O O O O O O O O O O O O B-GeneOrGeneProduct O B-GeneOrGeneProduct O B-GeneOrGeneProduct O O O O O O O B-DiseaseOrPhenotypicFeature O O