 Chung's work researching cardiomyopathies describes metabolic causes, identify genetic modifiers of disease progression in children and infants with the hypertrophic cardiomyopathy and novel genes for infantile cardiomyopathy.One of Chung's contributions within the field of genetics involves her role in the development of screenings and treatment for spinal muscular atrophy (SMA),especially in newborns.Chung worked as a part of a team to develop a new screening and intervention process for infants with spinal muscular atrophy, with a pilot study conducted with a population of infants in New York identifying and successfully treating one infant with SMA.