1. College of Nursing and Mo-Im Kim Nursing Research Institute, Yonsei University, Seoul, Korea.
2. Department of Nursing, Hansei University, Gunpo, Korea.
3. College of Nursing and Brain Korea 21 FOUR Project, Yonsei University, Seoul, Korea.
4. Department of Urology, Urological Science Institute, Severance Hospital, Yonsei University College of Medicine, Seoul, Korea.