1. College of Nursing, Chungnam National University, Daejeon, South Korea
2. Nell Hodgson Woodruff School of Nursing, Emory University, Atlanta, Georgia
3. Department of Internal Medicine, Chungnam National University, Daejeon, South Korea
4. College of Sport Science, Dankook University, Cheonan, South Korea
5. College of Natural Science, Department of Statistics, Keimyung University, Daegu, South Korea
6. Byrdine F. Lewis School of Nursing and Health Professions, Georgia State University, Atlanta, Georgia