title: I am worried.
authors.forename: Ray C
authors.initials: RC
authors.lastname: Williams
mesh_terms: D000894:Anti-Inflammatory Agents, Non-Steroidal / Q000627:therapeutic use; D018865:Dental Research; D016557:Guided Tissue Regeneration, Periodontal; D006801:Humans; D010510:Periodontal Diseases / Q000188:drug therapy / Q000382:microbiology / Q000601:surgery; D010517:Periodontics / Q000639:trends*
chemical_list: D000894:Anti-Inflammatory Agents, Non-Steroidal