| Affiliation: | 1. Department of Microbiology, School of Dental Medicine, University of Pennsylvania, Philadelphia, PA, USA;2. Department of Preventive and Restorative Sciences, Division of Pediatric Dentistry, School of Dental Medicine, University of Pennsylvania, Philadelphia, PA, USA;3. Department of Dental Ecology, School of Dentistry, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA;4. Institute for Clinical Chemistry and Laboratory Medicine, Technische Universit?t Dresden, Dresden, Germany |
