She has continued her scientific research, including the use of molecular genetic diagnosis, prenatal diagnosis and treatment. Although steroid physiology was well understood when New began her scientific career, little of the knowledge had been applied to the understanding of steroid disorders in children. New's research on the mechanism and genetics of steroid disorders has established standards for pre- and post-natal care for patients with congenital adrenal hyperplasia and apparent mineralocorticoid excess.[citation needed]