Sukatendel, K., Hasibuan, R.H., Siregar, M.F., Faradina, D., Edianto, D., Lintang, L.S., Rusda, M. and Inriani, V. 2025. Effect of Nigella sativa seed extract on estradiol, FSH levels, and vaginal maturity index in menopausal women: A randomized controlled trial. Narra J. 5, 1 (Feb. 2025), e1399. DOI:https://doi.org/10.52225/narra.v5i1.1399.