1. Chungnam National University, 26715, College of Nursing, Yuseong, Daejeon, Korea (the Republic of), 305764;
2. University of Florida, Geriatric Medicine, HPNP box 100187, Gainesville, Florida, United States, 32610;
3. University of Florida, 3463, Gainesville, Florida, United States;
4. Montana State University, 33052, Bozeman, Montana, United States;
5. University of Florida College of Nursing, 16096, Gainesville, Florida, United States;