gene :gene_symbol, nomenclature: 'MyCancerGenome Gene Symbol' do
              name :entrez_gene_id, nomenclature: 'Entrez Gene Id', unless: blank_filter
              name :gene_symbol, nomenclature: 'MyCancerGenome Gene Symbol', unless: blank_filter
              name :reported_gene_name, nomenclature: 'MyCancerGenome Reported Gene Name', unless: blank_filter
            end