Chi, V.T.T. , Quế, T.T. , Sơn, N.B. , Phương, N. Đăng T. , Lan, H.T.N. and Anh, L.T.L. 2023. 27. VALUE OF CFFDNA CONCENTRATIONS IN NIPT FOR PRENATAL SCREENING OF DOWN SYNDROME. Vietnam Journal of Community Medicine. 64, 2 (Mar. 2023). DOI:https://doi.org/10.52163/yhc.v64i2.630.