Affiliation: | (1) Dental Research Center, Department of Biochemistry and Nutrition, University of North Carolina at Chapel Hill, 27514 Chapel Hill, North Carolina, USA;(2) Biomedical Research Division, Ames Research Center, NASA, 94035 Moffett Field, California, USA;(3) Department of Surgery, University of North Carolina at Chapel Hill, 27514 Chapel Hill, North Carolina, USA |