S. Nimonkar, P. Chaudhari, V. Gupta, N. Saxena, and S. Agarwal, “Factors associated with induced second trimester abortion at a tertiary level hospital of Uttarakhand region: a 6-year retrospective study”, Int J Reprod Contracept Obstet Gynecol, vol. 9, no. 6, pp. 2333–2336, May 2020.