A chorionic villus is a minute vascular projection on the fetal chorion.    From Wordnet, Princeton University. 

They consist of things like amniocentesis, something known as chorionic villus sampling.    From Wordnik.com.  [CNN Transcript Oct 9, 2003] Reference

The cell sample is taken from the placenta using a pre-natal biopsy called chorionic villus sampling (CVS).    From Wordnik.com.  [Health News from Medical News Today] Reference

Whether or not to have amniocentesis—or a related test called chorionic villus sampling—is a difficult decision for many expectant parents.    From Wordnik.com.  [To amnio or not to amnio? New test can provide clearer answer for moms-to-be] Reference

Historically, obstetricians recommended that pregnant women age 35 or older get an amnio (or a related procedure, called chorionic villus sampling).    From Wordnik.com.  [Freakonomics] Reference

Invasive tests, such as chorionic villus sampling and amniocentesis, give parents definitive answers about certain chromosomal abnormalities.    From Wordnik.com.  [Vail Daily - Top Stories] Reference

It is called human chorionic gonadotrophin, usually abbreviated HCG.    From Wordnik.com.  [The Human Brain]

Human chorionic gonadotropin hCG is a hormone produced only during pregnancy.    From Wordnik.com.  [Pregnancy, Childbirth, and the Newborn] Reference

Mr. Eades, what are your thoughts on hcg human chorionic gonadotropin & weightloss ?.    From Wordnik.com.  [One of the dumbest headlines ever | The Blog of Michael R. Eades, M.D.] Reference

Ramirez says he was taking human chorionic gonadotropin (HCG) to treat a "personal health issue.".    From Wordnik.com.  [James Warren: This Week in Magazines: If The Economy is Driving You to Drink...] Reference

(The study did not look at chorionic villus sampling, the other definitive test for Down syndrome.).    From Wordnik.com.  [Health: Is Amnio Right For You?] Reference

Women have screening for Down's by amniocentesis or chorionic villus sampling starting at young ages.    From Wordnik.com.  [Steven Waldman: Palin: God Gave Me a Down Syndrome Child To Help the Pro-Life Movement] Reference

Brian Cushing was finally suspended for his September positive test of HCG (human chorionic gonadotropin).    From Wordnik.com.  [Time to reel in HGH] Reference

The study population will include patients presenting for amniocentesis or chorionic villus sampling (CVS).    From Wordnik.com.  [Clinical Studies] Reference

A hormone called human chorionic gonadotropin may be to blame: female fetuses produce more of it than males.    From Wordnik.com.  [Origins] Reference

Human chorionic gonadotropin is widely taken by steroid users to help restart natural testosterone production.    From Wordnik.com.  [AP: Texans' Brian Cushing tested positive for HCG] Reference

Therefore, amniocentesis and chorionic villus sampling (CVS) are not necessary prerequisites for fetal surgery.    From Wordnik.com.  [Bronchopulmonary sequestration and Congenital Cystic Adenomatoid] Reference

Platelet activating factor - acytylhydrolase (PAF-AH) activity following chorionic villus sampling and amniocentesis.    From Wordnik.com.  [Prenatal Diagnosis] Reference

Further chorionic villus sampling (CVS), however, indicated some good news: the fetus had no chromosomal abnormalities.    From Wordnik.com.  [Omphalocele -- Hughes] Reference

Cells are collected either by amniocentesis or chorionic villus sampling, and scientists test the fetal DNA in those cells.    From Wordnik.com.  [Genetics and Alagille Syndrome] Reference

The corpus luteum is maintained by a hormone signal (HCG-human chorionic gonadotrophin) secreted by the developing placenta.    From Wordnik.com.  [Miscarriage] Reference

Polio and tetanus vaccines were claimed to contain a protein common in pregnancy, called human chorionic gonadotrophin or hCG.    From Wordnik.com.  [Global Immunization: Vaccine Coverage is Variable] Reference

Prenatal diagnostic procedures: amniocentesis, chorionic villus sampling (CVS), fetal blood sampling and fetal skin/muscle biopsy.    From Wordnik.com.  [About Our Services] Reference

Many of the labels indicate the products contain HCG, or human chorionic gonadotropin, a hormone made by the placenta during pregnancy.    From Wordnik.com.  [HCG weight-loss products are fraudulent, FDA says] Reference

DNA is isolated from the cells of the developing baby though one of two procedures -- chorionic villus sampling (CVS) or amniocentesis.    From Wordnik.com.  [Li-Fraumeni Syndrome] Reference

At the end of the first month of development, projections chorionic villi extend into your uterine lining, becoming a primitive placenta.    From Wordnik.com.  [Pregnancy, Childbirth, and the Newborn] Reference

A woman could be immunized against the hormone human chorionic gonadotropin (hCG), which keeps the uterine lining from being sloughed off.    From Wordnik.com.  [If You Don't Like Implants...] Reference

During a pregnancy, the fetus could be tested for the mutation with standard prenatal testing (chorionic villus sampling or amniocentesis).    From Wordnik.com.  [Frequently Asked Questions About Alagille Syndrome] Reference

At this age, the potential benefits from invasive tests, such as amniocentesis and chorionic villus sampling CVS, begin to outweigh the risks.    From Wordnik.com.  [Pregnancy, Childbirth, and the Newborn] Reference

This test examines a small piece from the chorionic villi the early placenta to provide information about chromosomal abnormalities in your baby.    From Wordnik.com.  [Pregnancy, Childbirth, and the Newborn] Reference

For the first twelve weeks, the growth hormone human chorionic gonadotropin HCG surges to prepare the placenta and increase the blood volume in the body.    From Wordnik.com.  [Simple Skin Beauty] Reference

The membranes (amniotic and chorionic) extending from the edge of the placenta formed the sac (bag of waters) that contained the amniotic fluid and your baby.    From Wordnik.com.  [Pregnancy, Childbirth, and the Newborn] Reference

Burton estimates that only 6 to 8 percent of pregnant mothers get the tests -- amniocentesis or chorionic villus sampling -- that can detect the extra chromosome.    From Wordnik.com.  ['Your Baby Has A Problem'] Reference

Many practitioners are using injections of human chorionic gonadotropin HCG injections coupled with an extremely low-calorie diet to help their patients lose weight.    From Wordnik.com.  [Snake oil comes in all kinds of bottles | The Blog of Michael R. Eades, M.D.] Reference

However, chorionic villi sampling is a relatively new procedure and some studies associate the procedure with an increased risk of miscarriage and deformities in the baby.    From Wordnik.com.  [Mothering Twins] Reference

Finally, you should be given a blood test to measure your levels of human chorionic gonadotropin hCG, the hormonal indication that your pregnancy is progressing satisfactorily.    From Wordnik.com.  [Getting Pregnant] Reference

Chris's drug test had revealed evidence of human chorionic gonadotropin.    From Wordnik.com.  [Rocky Top Talk] Reference

Nevada is the only state in the West that bans chorionic gonadotrophic hormones or hCG.    From Wordnik.com.  [Las Vegas Sun Stories: All Sun Headlines] Reference

He won't because the bottom line is he got caught with HGC, or human chorionic gonadotropin, in his system.    From Wordnik.com.  [Gaea Times (by Simple Thoughts) Breaking News and incisive views 24/7] Reference