Maurel J, Nadal C, Garcia-Albeniz X, Gallego R, Carcereny E, Almendro V, Marmol M, Gallardo E, Maria Auge J, Longaron R, Martinez-Fernandez A, Molina R, Castells A, Gascon P. Serum matrix metalloproteinase 7 levels identifies poor prognosis advanced colorectal cancer patients. Int J Cancer. 2007 Sep 1;121(5):1066-71.