1. Department of Periodontics; University of Texas Health Science Center at San Antonio; San Antonio TX
2. Department of Periodontics, School of Dentistry; University of Maryland; Baltimore MD
3. Private practice; Yardley PA
4. Unit of Basic Oral Investigation (UIBO), School of Dentistry, El Bosque University, Bogota, Colombia and School of Dentistry; Ibirapuera University (Unib); São Paulo Brazil
5. Graduate Periodontics, School of Dentistry; University of Louisville; Louisville KY
6. Department of Orofacial Sciences, Division of Periodontology; University of California San Francisco; San Francisco CA
7. Private practice; Cupertino CA
8. Department of Periodontics, School of Dentistry; University of California at Los Angeles; Los Angeles CA
9. Private practice; Tualatin and Beaverton OR
10. Department of Periodontology; Oregon Health and Science University; Portland OR
11. Department of Advanced Oral Sciences and Therapeutics, School of Dentistry; University of Maryland; Baltimore MD
12. Department of Oral Surgery and Implant Dentistry, Dental School, Johann Wolfgang Goethe; University of Frankfurt; Frankfurt Germany
13. Department of Periodontology, School of Dental Medicine; Stony Brook University; Stony Brook NY
14. Department of Periodontics and Oral Medicine, School of Dentistry; University of Michigan; Ann Arbor MI