TY - GEN AU - Cowans,Nicholas J AU - Stamatopoulou,Anastasia AU - Hellström,Johanna AU - Mäkelä,Minna-Maarit AU - Spencer,Kevin TI - PAPP-A and free ss-hCG stability in first trimester serum using PerkinElmer AutoDELFIA and DELFIA Xpress systems SN - 1097-0223 PY - 2010///0401 KW - Adult KW - Biomarkers KW - blood KW - Chorionic Gonadotropin, beta Subunit, Human KW - Female KW - Humans KW - Pregnancy KW - Pregnancy Trimester, First KW - Pregnancy-Associated Plasma Protein-A KW - analysis KW - Protein Stability KW - Specimen Handling KW - Temperature N1 - Publication Type: Journal Article; Research Support, Non-U.S. Gov't UR - https://doi.org/10.1002/pd.2423 ER -