Charas Y. T. Ong

First trimester maternal serum free β human chorionic gonadotrophin and pregnancy associated plasma protein A as predictors of pregnancy complications

Charas Y. T. Ong, Adolfo Wenjaw Liao, Kevin Spencer et al. · BJOG An International Journal of Obstetrics & Gynaecology · 2000 · 347 citations

Ethnicity and the need for correction of biochemical and ultrasound markers of chromosomal anomalies in the first trimester: a study of Oriental, Asian and Afro-Caribbean populations

Kevin Spencer, V. Heath, Ahmad El-Sheikhah et al. · Prenatal Diagnosis · 2005 · 134 citations

Screening for trisomy 13 by fetal nuchal translucency and maternal serum free ?-hCG and PAPP-A at 10-14 weeks of gestation

Kevin Spencer, Charas Y. T. Ong, Hara Skentou et al. · Prenatal Diagnosis · 2000 · 109 citations

Fertility, Genetics, Genetic Epidemiology +24

The influence of ethnic origin on first trimester biochemical markers of chromosomal abnormalities

Kevin Spencer, Charas Y. T. Ong, Adolfo Wenjaw Liao et al. · Prenatal Diagnosis · 2000 · 97 citations

Genetic Testing, Genetics, Genetic Epidemiology +18

First-trimester maternal serum levels of placenta growth factor as predictor of preeclampsia and fetal growth restriction

Charas Y. T. Ong · Obstetrics and Gynecology · 2001 · 70 citations