1. Division of Oral Medicine, Infection, and Immunity Harvard School of Dental Medicine Boston Massachusetts USA
2. Private Practice Pittsburgh Pennsylvania USA
3. Department of Periodontics University of Washington School of Dentistry, Seattle Washington USA
4. Department of Restorative Dentistry University of Washington School of Dentistry, Seattle Washington USA
5. Department of Periodontology and Oral Implants, The Maurice and Gabriela Goldschleger School of Dental Medicine, Sackler Faculty of Medicine Tel Aviv University Tel Aviv Israel
6. Division of Periodontology University of Minnesota School of Dentistry Minneapolis Minnesota USA
7. Department of Periodontics, Clinical and Translational Periodontal Research Lab. UTHealth San Antonio School of Dentistry San Antonio Texas USA