S. Bhattacharya, A. Kyal, P. Mondal, P. Mukhopadhyay, M. Chowdhury, and D. Mitra, “Mental stress in infertility: a tertiary care hospital-based study”, Int J Reprod Contracept Obstet Gynecol, vol. 7, no. 10, pp. 4249–4253, Sep. 2018.