Functional polymorphisms in the promoter of the matrix metalloproteinase-9 (MMP-9) gene are not linked with significant plasma MMP-9 variations in healthy subjects - Demacq, Caroline; Vasconcellos, Vivian B.; Marcaccini, Andrea M.; Gerlach, Raquel Fernanda; Silva Júnior, Wilson Araújo da; Tanus-Santos, José Eduardo (Clinical Chemistry and Laboratory Medicine, 2008)