1. Department of PeriodonticsUniversity of Texas Health Science Center San Antonio San Antonio TX USA
2. Nasseo Peoria AZ USA
3. Robert K. Schenk Laboratory of Oral HistologyUniversity of Bern Bern Switzerland
4. Funakoshi Research Institute of Clinical Periodontology Fukuoka Japan
5. Department of Biomedical EngineeringUniversity of Texas at San Antonio San Antonio TX USA