A systematic review and meta-analysis of acute kidney injury in the intensive care units of developed and developing countries - Melo, Fernando de Assis Ferreira; Macedo, Etienne; Bezerra, Ana Caroline Fonseca; Melo, Walédya Araújo Lopes de; Mehta, Ravindra L; Burdmann, Emmanuel de Almeida; Zanetta, Dirce Maria Trevisan (PLoS One, 2020)