[1] Yonsei Univ, Coll Nursing, 50-1 Yonsei Ro, Seoul 03722, South Korea
[2] Yonsei Univ, Mo Im Kim Nursing Res Inst, 50-1 Yonsei Ro, Seoul 03722, South Korea
[3] Konyang Univ, Coll Nursing, Daejeon, South Korea
[4] Samsung Med Ctr, Dept Crit Care Med, Seoul, South Korea
[5] Yonsei Univ, Grad Sch, Dept Nursing, Seoul, South Korea