TY - GEN AU - Liu,D T TI - Chorion villi for first trimester prenatal diagnosis SN - 0389-2328 PY - 1986///1218 KW - Biopsy KW - Chorionic Villi KW - pathology KW - Female KW - Humans KW - Pregnancy KW - Pregnancy Trimester, First KW - Prenatal Diagnosis N1 - Publication Type: Journal Article UR - https://doi.org/10.1111/j.1447-0756.1986.tb00217.x ER -