1. WHO. Available: https://www.who.int/reproductivehealth/topics/infertility/multiple-definitions/en/. 2019.
2. WHO. Available: https://www.who.int/reproductivehealth/topics/infertility/perspective/en/. 2019.
3. WHO. Available: https://www.who.int/reproductivehealth/topics/infertility/burden/en/. 2019.
4. Akhondi MM, Ranjbar F, Shirzad M, Behjati Ardakani Z, Kamali K, Mohammad K (2019) Practical difficulties in estimating the prevalence of primary infertility in Iran. Int J Fertil Steril. 13(2):113–117
5. Sargolzaee MR, Moharreri F, Arshadi HR, Javadi K, Karimi S, Fayyazi-bordbar MR. Psychosexual and depression disorders in infertile female referring to mashhad infertility treatment center. Journal of Reproduction & Infertility. 2001;2(4).