Valenzuela CY. Fiesta vs. Stress Condition the Incidence and the Age at Menarche. Forty Years of Research. Clin J Obstet Gynecol [Internet]. 2025 Aug. 5 [cited 2025 Dec. 3];8(3):023-9. Available from: https://www.obstetricgynecoljournal.com/index.php/cjog/article/view/cjog-aid1190