Test will identify Duchenne muscular dystrophy and some other types of muscle conditions RESEARCH TRIANGLE PARK, N.C. — RTI International, a nonprofit research institute, is partnering with the Muscular Dystrophy Association and Sarepta Therapeutics to add a test for Duchenne muscular dystrophy and some other types of muscle conditions to the Early Check program's screening panel for North Carolina newborns. Early Check is an ongoing partnership between RTI, Duke University, the University of North Carolina at Chapel Hill, Wake Forest University, and the North Carolina State Laboratory of Public Health that offers free, voluntary tests for conditions not included in the state's standard newborn screening. The program, which currently screens for fragile X syndrome and spinal muscular atrophy, is offered to all new parents in North Carolina.