TY - GEN AU - Ranta,Jenni K AU - Raatikainen,Kaisa AU - Romppanen,Jarkko AU - Pulkki,Kari AU - Heinonen,Seppo TI - Increased time-to-pregnancy and first trimester Down's syndrome screening SN - 1460-2350 PY - 2010///0316 KW - Adult KW - Biomarkers KW - blood KW - Chorionic Gonadotropin, beta Subunit, Human KW - analysis KW - Down Syndrome KW - diagnosis KW - False Positive Reactions KW - Female KW - Fertilization in Vitro KW - adverse effects KW - Humans KW - Infertility, Female KW - Nuchal Translucency Measurement KW - Peptide Fragments KW - Pregnancy KW - Pregnancy Outcome KW - Pregnancy Trimester, First KW - Pregnancy-Associated Plasma Protein-A KW - metabolism KW - Prenatal Diagnosis KW - methods KW - Retrospective Studies KW - Time Factors N1 - Publication Type: Journal Article; Research Support, Non-U.S. Gov't UR - https://doi.org/10.1093/humrep/dep417 ER -