Correction to: Spatial distribution and determinants of iron supplementation among pregnant women in Ethiopia: a spatial and multilevel analysis - Chilot Desta Agegnehu; Getayeneh Antehunegn Tesema; Achamyeleh Birhanu Teshale; Adugnaw Zeleke Alem; Yigizie Yeshaw; Sewnet Adem Kebede; Alemneh Mekuriaw Liyew (BMC, 2021)