title: Preanalytical aspects regarding the measurement of metalloproteinase-9 and tissue inhibitor or metalloproteinase-1 in blood.
mesh_terms: D001800:Blood Specimen Collection / Q000379:methods / Q000592:standards; D015925:Cryopreservation; D006493:Heparin; D006801:Humans; D020780:Matrix Metalloproteinase 9 / Q000097:blood*; D019715:Tissue Inhibitor of Metalloproteinase-1 / Q000097:blood*
chemical_list: D019715:Tissue Inhibitor of Metalloproteinase-1; D006493:Heparin; D020780:Matrix Metalloproteinase 9