by Jorgez, C.J. et al.
Department of Obstetrics and Gynecology, Baylor College of Medicine, 2450 Holcombe Blvd, Houston, USA
Department of Obstetrics and Gynecology, Baylor College of Medicine, 2450 Holcombe Blvd, Houston, USA
Elevated levels of total (maternal and fetal) beta-globin DNA in maternal blood from first trimester pregnancies with trisomy 21.
Hum. Reprod. 2007; 8:2267-72