[1] Taipei Med Univ, Coll Nursing, Sch Nursing, Taipei, Taiwan
[2] Univ Wollongong, Fac Sci Med & Hlth, Sch Nursing, Northfields Ave, Wollongong, NSW 2522, Australia
[3] Illawarra Hlth & Med Res Inst, Northfields Ave, Wollongong, NSW 2522, Australia
[4] Univ Hong Kong, Li Ka Shing Fac Med, Sch Nursing, Pokfulam, Hong Kong, Peoples R China
[5] Western Sydney Univ, Sch Nursing & Midwifery, Parramatta South Campus, Penrith, NSW 2150, Australia
[6] Taipei Med Univ Hosp, Nursing Dept, Taipei, Taiwan
[7] Taipei Med Univ, Coll Med, Res Ctr Sleep Med, Taipei, Taiwan
[8] Taipei Med Univ Hosp, Dept Psychiat, Taipei, Taiwan
[9] Taipei Med Univ Hosp, Sleep Ctr, Taipei, Taiwan
[10] 250 Wuxing St, Taipei City 110, Taiwan