JASSIM, Sura D.; IBRAHIM, Lekaa M. Correlation between Periodontal Health Status and Salivary Matrix Metalloproteinase-9 Levels in Smoker and Non-Smoker Chronic Periodontitis Patients (A Comparative Study) . Journal of Baghdad College of Dentistry, [S. l.], v. 28, n. 4, p. 128–133, 2016. DOI: 10.12816/0033223. Disponível em: https://jbcd.uobaghdad.edu.iq/index.php/jbcd/article/view/1511.. Acesso em: 28 apr. 2024.