[1] Univ Newcastle, Sch Nursing & Midwifery, Callaghan, NSW, Australia
[2] Bengbu Med Coll, Dept Nursing, Bengbu, Anhui, Peoples R China
[3] Bengbu Med Coll, Affiliated Hosp 1, Dept Nursing, Bengbu, Anhui, Peoples R China
[4] Univ Newcastle Singapore, Singapore, Singapore