1. Center for Oral Health Research; College of Dentistry; University of Kentucky; Lexington KY USA
2. School of Dentistry; University of Puerto Rico; Sabana Seca PR USA
3. Caribbean Primate Research Center; San Juan PR USA
4. Department of Pharmacology and Nutritional Sciences; College of Medicine; University of Kentucky; Lexington KY USA
5. Department of Statistics; College of Arts and Sciences; University of Kentucky; Lexington KY USA