“…Fifteen of the studies were from Amhara [34][35][36][37][38][39][40][41][42][43]55,68,116,117,119], two from Addis Ababa [52,53], four from Affar [33,58,63,115], four from Oromia [45,64,65,122], twelve from SNNP [46][47][48]51,52,54,57,59,60,61,62,66], one from Tigray [67], two from Somalia [49,121],two from Harari [44,120],one from nationwide [50],one from Diredawa [118] and one from SNNP and Tigray [123]. No studies reported from Benishangul Gumiz and Gagmbela in this review research.…”