1. WHO. Working Defenetion: World Health Organization, 2002. Accessed June 25, 2024. https://www.publichealth.com.ng/world-health-organizationwho-definition-of-health/
2. WHO. Adolescent Friendly Health Services — an agenda for change. Geneva:World Health Organization, 2002. Accessed June 25, 2024. https://www.who.int/publications/i/item/WHO-FCH-CAH-02.14
3. The age of adolescence
4. Evstifeeva EA, Filippchenkova SI, AV Makarov. Risk Factors Affecting the Reproductive Health of Young People. Tverskogo gosudarstvennogo universiteta. Seriya: Pedagogika i psixologiya. 2019;2(47):66-72. (In Russ.)
5. Abnormal uterine bleeding in puberty: diagnosis and treatment