title: Assay of hirudin in plasma using a chromogenic thrombin substrate.
mesh_terms: D002863:Chromogenic Compounds; D006629:Hirudins / Q000097:blood*; D006801:Humans; D013917:Thrombin / Q000037:antagonists & inhibitors
chemical_list: D002863:Chromogenic Compounds; D006629:Hirudins; D013917:Thrombin