KNOWLEDGE AND MANAGEMENT OF MENSTRUAL PROBLEMS AMONG FEMALE STUDENTS OF YAGONGWO COLLEGE OF NURSING SCIENCES, KUJE, ABUJA, NIGERIA - UDOUDO INEMESIT OSCAR; IGWENWANNE EMA AMAKA; IYHOBHEBHE DAVID VICTOR; OBIOHA KENECHI UGONWA (Journal of Health Systems Research, 2026)