A method for diagnosis of fetal diseases by sampling the cells of the placental chorionic villi for DNA analysis, presence of bacteria, concentration of metabolites, etc. The advantage over amniocentesis is that the procedure can be carried out in the first trimester.

Synonyms: Samplings, Chorionic Villus Samplings, Chorionic Villi Biopsy, Chorionic Villi Chorionic Villi Biopsies Chorionic Villus Sampling Chorionic Villi Sampling Sampling, Chorionic Villus Biopsies, Chorionic Villi Chorionic Villus Samplings Chorionic Villi Samplings Chorionic Villi Biopsy Sampling, Chorionic Villi