[1] Gachon Univ, Coll Nursing, Incheon, South Korea
[2] Univ Arkansas Med Sci, Coll Nursing, Little Rock, AR 72205 USA
[3] Daejeon Univ, Dept Emergency Med Serv, Daejeon, South Korea
[4] Dongguk Univ, Coll Med, Dept Nursing, Gyeongsangbuk Do, South Korea
[5] Univ Calif Irvine, Sue & Bill Gross Sch Nursing, Irvine, CA USA