[1] Mashhad Univ Med Sci, Sch Nursing & Midwifery, Dept Midwifery, Mashhad, Razavi Khorasan, Iran
[2] Mashhad Univ Med Sci, Sch Tradit Med, Dept Acupuncture, Mashhad, Razavi Khorasan, Iran
[3] Mashhad Univ Med Sci, Hlth Sci Res Ctr, Sch Hlth, Dept Biostat & Epidemiol, Mashhad, Razavi Khorasan, Iran