1. Department of Oral and Craniofacial Science, School of Dentistry; University of Missouri-Kansas City; Kansas City; MO; USA
2. Institute for Aging Research; Hebrew SeniorLife and Harvard Medical School; Boston; MA; USA
3. Johns Hopkins University; Baltimore; MD; USA
4. University of Kentucky; Lexington; KY; USA
5. Oregon Health and Science University; Portland; OR; USA
6. University of Rochester Medical Center; Rochester; NY; USA
7. Jean Mayer USDA Human Nutrition Research Center on Aging at Tufts University; Boston; MA; USA