1. Department of Biomedical Engineering, College of Engineering, Virginia Commonwealth University, Richmond, Virginia, United States
2. Department of Gerontology, College of Health Professionals, Virginia Commonwealth University, Richmond, Virginia, United States
3. Department of Orthopaedic Surgery, School of Medicine, Virginia Commonwealth University, Richmond, Virginia, United States
4. Department of Periodontics, School of Dentistry, University of Texas Health Science Center at San Antonio, San Antonio, Texas, United States