13 April 2022 : Clinical Research
External Quality Assessment of Maternal Serum Levels of Alpha-Fetoprotein, Free Beta-Human Chorionic Gonadotropin, and Unconjugated Estriol in Detecting Down Syndrome and Neural Tube Defects in the Second Trimester of 87 Maternal Serum Samples, Based on 105-139 Days
DOI: 10.12659/MSM.935573
Med Sci Monit 2022; 28:e935573