1. Department of Periodontics, Clinical and Periodontal Research Laboratory; University of Washington; Seattle WA (Washington), USA
2. Department of Restorative Dentistry; University of Washington; Seattle WA (Washington), USA
3. Department of Periodontics and Oral Health Sciences; University of Washington; Seattle WA (Washington), USA
4. Department of Microbiology; University of Washington; Seattle WA (Washington), USA