Menstrual abnormality, maternal illiteracy, and household factors as main predictors of anemia among adolescent girls in Ethiopia: Systematic review and meta-analysis oleh Fitsum Endale, Demelash Woldeyohannes, Fanuel Belayneh, Aiggan Tamene, Aklilu Habte, Addisalem Gizachew, Dawit Sulamo, Yohannes Yirga Demessie, Janet Yohannes, Tadesse Mekonen, Denebo Akiso