Guízar-Mendoza, Juan Manuel Correlation between interleukin-1β and matrix metalloproteinase-1 levels in crevicular fluid with a proposed periodontal disease index in children. [electronic resource] - Journal of Indian Society of Periodontology - 209-214 p. digital Publication Type: Journal Article ISSN: 0972-124X Standard No.: 10.4103/jisp.jisp_383_17 doi