title: Smoking, Helicobacter pylori, and periodontitis.
authors.forename: Trevor L P
authors.initials: TL
authors.lastname: Watts
mesh_terms: D016481:Helicobacter Infections; D016480:Helicobacter pylori; D006801:Humans; D010518:Periodontitis / Q000209:etiology* / Q000382:microbiology; D012907:Smoking / Q000009:adverse effects*