Study on the relationship between the expression of matrix metalloproteinase-9 and premature rupture of membrane as pregnant women with periodontal inflammation

YANG Li-li1, CHENG Min2, XU Wei3, CHENG Lin2

West China Journal of Stomatology . 2010, (06): 660 -663 . DOI: 10.3969/j.issn.1000-1182.2010.06.023