Sukatendel K, Hasibuan RH, Siregar MF, Faradina D, Edianto D, Lintang LS, et al. Effect of Nigella sativa seed extract on estradiol, FSH levels, and vaginal maturity index in menopausal women: A randomized controlled trial. Narra J [Internet]. 2025 Feb. 17 [cited 2026 Apr. 2];5(1):e1399. Available from: https://www.narraj.org/main/article/view/1399