Ahmadi Asr Badr, Y., K. Madaen, S. Haj Ebrahimi, A. H. Ehsan Nejad, and H. Koushavar. “Prevalence of Infertility in Tabriz in 2004”. Urology Journal, vol. 3, no. 2, Mar. 2009, pp. 87-91, doi:10.22037/uj.v3i2.201.