Fu, J. .; Zhong, X. .; Li, D.; Ge, Y.; Zhang, X. . THE VALUE OF NIPT COMBINED WITH SERUM CELL-FREE DNA, ESTRIOL, AFP, AND B-HCG LEVELS IN THE RECOGNITION OF TRISOMY 21 AND 18 IN THE SECOND TRIMESTER. J Med Biochem 2023, 42 (4), 574-581. https://doi.org/10.5937/jomb0-33027.