@article{article1cbbca30, title = {Rapid separation of serum does not avoid artificially higher matrix metalloproteinase (MMP)-9 levels in serum versus plasma}, author = {Gerlach, Raquel Fernanda and Demacq, Caroline and Jung, Klaus and Tanus-Santos, José Eduardo}, year = {2007}, doi = {10.1016/j.clinbiochem.2006.10.007}, journal = {Clinical Biochemistry} }