title: Quantification of contact system activation using a radiometric assay for activated factor IX.
mesh_terms: D000818:Animals; D001807:Blood Vessel Prosthesis; D002417:Cattle; D005164:Factor IX / Q000378:metabolism*; D005898:Glass; D006801:Humans; D010455:Peptides / Q000378:metabolism; D011093:Polyethylene Terephthalates; D011126:Polypropylenes; D011874:Radiometry; D014238:Trichloroacetic Acid / Q000378:metabolism
chemical_list: D010455:Peptides; D011093:Polyethylene Terephthalates; D011126:Polypropylenes; D014238:Trichloroacetic Acid; D005164:Factor IX