Yakhforushha, A, et al. “Effects of Education via Health Belief Model on Knowledge and Attitude of Voluntary Health Workers Regarding Pap Smear in Urban Centers of Qazvin”. Advances in Nursing & Midwifery, vol. 18, no. 63, July 2009, pp. 27-33, doi:10.22037/anm.v18i63.1176.