Assessment of laboratories offering cell-free (cf) DNA screening for Down syndrome: results of the 2018 College of American Pathology External Educational Exercises.
Palomaki GE, Wyatt P, Best RG, Lepage N, Ashwood ER, Souers RJ, Thorson JA. Assessment of laboratories offering cell-free (cf) DNA screening for Down syndrome: results of the 2018 College of American Pathology External Educational Exercises. Genet Med. 2020 04; 22(4):777-784.