1.
Saavedra-Alvarado CJ, García-Ruiz A, Hernández-Ortiz AF. Beginning of sexual and reproductive life in adolescence - UPSE Educational Unit. CEUS. 2021;3(1):19-24. Accessed November 12, 2026. https://ceus.ucacue.edu.ec/index.php/ceus/article/view/51