Maternal serum Down syndrome screening: Free β-protein is a more effective marker than human chorionic gonadotropin

Birth Defects: Original Article Series.

Annals of Internal Medicine · 1971 · 1.4K citations

Medicine, Obstetrics, Pediatrics +14

Maternal serum screening for Down's syndrome in early pregnancy.

N J Wald, Howard Cuckle, J. W. Densem et al. · BMJ · 1988 · 974 citations · Full text

Medicine, Maternal Health, Obstetrics +16

Abnormal maternal serum chorionic gonadotropin levels in pregnancies with fetal chromosome abnormalities

Mark H. Bogart, M.R. Pandian, Oliver W. Jones · Prenatal Diagnosis · 1987 · 474 citations

Medicine, Maternal Health, Obstetrics +14

Placental histology and the production of human choriogonadotrophin and its subunits in pregnancy

D.L. Hay · BJOG An International Journal of Obstetrics & Gynaecology · 1988 · 71 citations

Medicine, Endocrinology, Obstetrics +17

Differential production of human chorionic gonadotropin and free subunits in gestational trophoblastic disease

Mehmet Öztürk, Ross S. Berkowitz, Donald P. Goldstein et al. · American Journal of Obstetrics and Gynecology · 1988 · 66 citations

Medicine, Gynecology, Obstetrics +11