Measurement of recombinant tissue factor using different ELISAs. Different amounts of Innovin (12.5-100 pg/mL) were measured using (A) Imubind ELISA, (B) Quantikine ELISA, (C) SimpleStep ELISA, and (D) CD142 ELISA. Different amounts of Innovin (12.5-100 pg/mL) were spiked into pooled human plasma and measured using (E) Imubind ELISA, (F) Quantikine ELISA, (G) SimpleStep ELISA, and (H) CD142 ELISA.