Al-Hebshi, Nezar Noor Interleukin-1 Two-Locus Haplotype Is Strongly Associated with Severe Chronic Periodontitis among Yemenis. [electronic resource] - Molecular biology international 2012 - 231309 p. digital Publication Type: Journal Article ISSN: 2090-2190 Standard No.: 10.1155/2012/231309 doi