Ashish Kumar, “SAFETY, SIDE EFFECTS, AND PATIENT PROFILE IN LETROZOLE STEP-UP VS CONVENTIONAL PROTOCOLS FOR OVULATION INDUCTION IN UNEXPLAINED INFERTILITY”, J Popl Ther Clin Pharmacol, vol. 32, no. 6, pp. 1705–1707, Jul. 2025, doi: 10.53555/1r4ypb61.