Jeong-Ah Ahn, PhD, RN Researcher, College of Nursing, the Catholic University of Korea, Seoul.
Sunhee Lee, PhD, RN Assistant Professor, College of Nursing, the Catholic University of Korea, Seoul.
Jae Young Choi, MD, PhD Division of Pediatric Cardiology, Severance Cardiovascular Hospital, Yonsei University Health System, Seoul, Korea.
This research was supported by Basic Science Research Program through the National Research Foundation of Korea funded by the Ministry of Education, Science, and Technology (NRF-2012R1A1A3007989).
The authors have no conflicts of interest to disclose.
Correspondence Sunhee Lee, PhD, RN, 222 Banpo-daero, Seocho-gu, Seoul 137-701, Korea ([email protected]).