In 2004, the Centers for Disease Control and Prevention (CDC) convened a workshop to discuss past and present DMD newborn screening programs, the risks and benefits of screening, and to announce the availability of funding for newborn and older infant DMD screening studies (http://www.cdc.gov/ncbddd/duchenne/documents/NBS_Lay_Report.pdf). This evidence concerns the gene DMD and Duchenne muscular dystrophy.