| Description | Enzyme immunoassay (ELISA) for the quantitative in vitro diagnostic measurement of free estriol (unconjugated estriol) in serum during the second half of pregnancy. | Solid phase sandwich ELISA for the determination of human Aß (1-42) in EDTA plasma cerebrospinal fluid and cell culture supernatant. For research use only, not for use in diagnostic procedures. | Solid phase sandwich ELISA for the determination of human ANGPTL2 in serum, EDTA-plasma and cell culture supernatant. For research use only, not for use in diagnostic procedures._x000D_ | Radioimmunoassay (RIA) for the determination of chromogranin A (CGA) in human serum or plasma. For research use only, not for use in diagnostic procedures. | Radioimmunoassay (RIA) for the determination of human IGFBP-3 in serum, plasma, or other human biological fluids (e.g. follicular fluid, seminal plasma). For research use only, not for use in diagnostic procedures. |