[1] Univ Tehran Med Sci, Sch Nursing & Midwifery, Dept Psychiat Nursing, Tehran, Iran
[2] Univ Lahore, Lahore Sch Nursing, Lahore, Pakistan
[3] Univ Tehran Med Sci, Endocrinol & Metab Populat Sci Inst, Elderly Hlth Res Ctr, Tehran, Iran
[4] Univ Tehran Med Sci, Sch Nursing & Midwifery, Dept Med Surg Nursing, Tehran, Iran