APA (7th ed.) Citation

Chen, Y., Ning, W., Wen, C., Gu, L., & Chu, X. Predictive value of the maternal alpha-fetoprotein variant, L2, during the first trimester of pregnancy screening for fetal trisomy 21, trisomy 18, and neural tube defects. BMC.

Chicago Style (17th ed.) Citation

Chen, Yiming, Wenwen Ning, Caihe Wen, Linyuan Gu, and Xuelian Chu. Predictive Value of the Maternal Alpha-fetoprotein Variant, L2, During the First Trimester of Pregnancy Screening for Fetal Trisomy 21, Trisomy 18, and Neural Tube Defects. BMC.

MLA (9th ed.) Citation

Chen, Yiming, et al. Predictive Value of the Maternal Alpha-fetoprotein Variant, L2, During the First Trimester of Pregnancy Screening for Fetal Trisomy 21, Trisomy 18, and Neural Tube Defects. BMC.