@misc{indiciae530d8026fb96, title = {Factor X assays using chromogenic substrate S-2222.}, author = {A Girolami and L Saggin and G Boeri}, year = {1980}, doi = {10.1093/ajcp/73.3.400}, url = {https://pubmed.ncbi.nlm.nih.gov/7361721/}, note = {Source identifier: 7361721} }