Paul, S.; Mandal, S.; Pal, A.; Pramanik, S. R. Comparison of Intrauterine Insemination and Timed Intercourse Following Controlled Ovarian Hyperstimulation in Unexplained Infertility: A Randomized Controlled Trial. Int J Reprod Contracept Obstet Gynecol 2019, 8, 1035-1040.