1. Infecundity, infertility, and childlessness in developing countries - DHS Comparative Reports No. 9. (2004). Accessed. Nov 19, 2021 : https://cdn.who.int/media/docs/default-source/hrp/dhs-cr9.pdf?sfvrsn=2b1cf1a7_9&download=true.
2. Infertility and psychological distress: a critical review of the literature;Greil AL;Soc Sci Med,1997
3. Childlessness in Andhra Pradesh, India: treatment-seeking and consequences. Reproductive health matters;Unisa S;Int J Sex Preprod Health Rights,1999
4. Vital statistics of India based on the civil registration system (CRS) 2019. (2021). Accessed. June 23, 2022: https://crsorgi.gov.in/web/uploads/download/CRS%202019%20report.pdf.
5. Transvaginal perfusion of G-CSF for infertile women with thin endometrium in frozen ET program: a non-randomized clinical trial;Eftekhar M;Iran J Reprod Med,2014