Wafa; Frenaya Putri Indira; Maira Ryu Lana Aghnaita; Siti Zaina Ikramullah; Amalina Khairunisa Mumtaz; Nadia Namira Mecca. RISK FACTORS OF BREAST CANCER AMONG WOMEN OF REPRODUCTIVE AGE: A LITERATURE REVIEW OF OBSERVATIONAL STUDIES (2021-2026). JRPPS 2026, 5, 1-8.