[1] Shahroud Univ Med Sci, Sch Nursing & Midwifery, Dept Nursing, Shahroud, Iran
[2] Shahroud Univ Med Sci, Sch Nursing & Midwifery, Shahroud, Iran
[3] Univ Tehran Med Sci, Sch Publ Hlth, Dept Epidemiol & Biostat, Tehran, Iran
[4] Shahroud Univ Med Sci, Randomized Controlled Trial Res Ctr, Dept Nursing, 7th Sq, Shahroud, Iran