1. The pathogenesis of periodontal disease.;Academy Reports;J Periodontol,1999
2. Dental unit waterlines: approaching the year 2000.;ADA Council on Scientific Affairs;J Am Dent Assoc,1999
3. American Academy of Periodontology guidelines for periodontal therapy.;J Periodontol,1998
4. American Academy of Periodontology current procedural terminology for periodointics and insurance reporting. 7th edn. American Academy of Periodontology 1998