[1] Taipei Med Univ, Coll Nursing, Sch Nursing, 250 Wuxing St, Taipei 110, Taiwan
[2] Univ Airlangga, Dept Nursing, Surabaya, Indonesia
[3] Univ Sebelas Maret, Midwifery Dept, Surakarta, Indonesia
[4] Taipei Med Univ, Grad Inst Injury Prevent & Control, Coll Publ Hlth, Taipei, Taiwan
[5] Taipei Med Univ Hosp, Dept Nursing, Taipei, Taiwan
[6] Taipei Med Univ Hosp, Res Ctr Sleep Med, Taipei, Taiwan
[7] Taipei Med Univ, Coll Med, Res Ctr Sleep Med, Taipei, Taiwan