[1] Natl Cheng Kung Univ, Coll Med, Dept Nursing, Tainan, Taiwan
[2] Natl Cheng Kung Univ, Natl Cheng Kung Univ Hosp, Coll Med, Dept Nursing, Tainan, Taiwan
[3] Univ Padjadjaran, Fac Nursing, Bandung, West Java, Indonesia
[4] Natl Cheng Kung Univ, Coll Med, Dept Nursing, 1 Univ Rd, Tainan 70101, Taiwan