1. Minnesota Dental Research Center for Biomaterials and Biomechanics, Department of Restorative Sciences, School of Dentistry, University of Minnesota, Minneapolis, Minnesota, USA
2. Department of Animal Science, College of Food, Agriculture and Natural Resource Sciences, University of Minnesota, St Paul, Minnesota, USA
3. Department of Population Health and Reproduction, School of Veterinary Medicine, University of California, Davis, CA, USA
4. Department of Clinical Pathology, School of Medicine, Mansoura University, Mansoura, Egypt
5. Center for Mass Spectrometry and Proteomics, Department of Biochemistry, Molecular Biology and Biophysics, University of Minnesota, Minneapolis, Minnesota, USA
6. Department of Restorative Sciences, School of Dentistry, University of Minnesota, Minneapolis, Minnesota, USA
7. Department of Diagnostic and Biological Sciences, School of Dentistry, University of Minnesota, Minneapolis, Minnesota, USA