@article {49593, title = {Conservation in first introns is positively associated with the number of exons within genes and the presence of regulatory epigenetic signals}, volume = {15}, year = {2014}, month = {Jan-01-2014}, pages = {526}, issn = {1471-2164}, doi = {10.1186/1471-2164-15-526}, url = {http://www.biomedcentral.com/1471-2164/15/526}, author = {Park, Seung and Hannenhalli, Sridhar and Choi, Sun} }