Dung, S Z Effects of mutans streptococci, Actinomyces species and Porphyromonas gingivalis on collagen degradation. [electronic resource] - Zhonghua yi xue za zhi = Chinese medical journal; Free China ed Nov 1999 - 764-74 p. digital Publication Type: Journal Article ISSN: 0578-1337 Subjects--Topical Terms: Actinomyces--metabolismBiodegradation, EnvironmentalCollagen--metabolismDental Caries--microbiologyDentin--metabolismHumansPorphyromonas gingivalis--metabolismStreptococcus mutans--metabolism