Lauritano, D Bacterial load of periodontal pathogens among italian patients with chronic periodontitis: a comparative study of three different areas. [electronic resource] - Journal of biological regulators and homeostatic agents - 149-54 p. digital Publication Type: Comparative Study; Journal Article ISSN: 0393-974X Subjects--Topical Terms: Bacterial LoadChronic Periodontitis--epidemiologyHumansItaly--epidemiology