[1] Ewha Womans Univ, Coll Nursing, 52 Ewhayeodae Gil, Seoul 03760, South Korea
[2] Dongnam Hlth Univ, Dept Nursing, 50 Cheoncheon Ro 74beon Gil, Suwon, Gyeonggi Do, South Korea
[3] Catholic Univ Pusan, Coll Nursing, 57 Oryundae Ro, Busan 46252, South Korea
[4] Catholic Univ Korea, Bucheon ST Marys Hosp, Dept Nursing, 327 Sosa Ro, Bucheon Si 14647, Gyeonggi Do, South Korea