Eckardt K, Bansal N, Coresh J, Evans M, Grams M, Herzog C, James M, Heerspink H, Pollock C, Stevens P, Tamura M, Tonelli M, Wheeler D, Winkelmayer W, Cheung M, Hemmelgarn B, Participants C, Abu-Alfa A, Anand S, Arici M, Ballew S, Block G, Burgos-Calderon R, Charytan D, Das-Gupta Z, Dwyer J, Fliser D, Froissart M, Gill J, Griffith K, Harris D, Huffman K, Inker L, Jager K, Jun M, Kalantar-Zadeh K, Kasiske B, Kovesdy C, Krane V, Lamb E, Lerma E, Levey A, Levin A, Mauro J, Nash D, Navaneethan S, O’Donoghue D, Obrador G, Pecoits-Filho R, Robinson B, Schäffner E, Segev D, Stengel B, Stenvinkel P, Tangri N, Tentori F, Tsukamoto Y, Turakhia M, Vazquez M, Wang A, Williams A. Improving the prognosis of patients with severely decreased glomerular filtration rate (CKD G4+): conclusions from a Kidney Disease: Improving Global Outcomes (KDIGO) Controversies Conference. Kidney International 2018, 93: 1281-1292. PMID: 29656903, PMCID: PMC5998808, DOI: 10.1016/j.kint.2018.02.006.Peer-Reviewed Reviews, Practice Guidelines, Standards, and Consensus Statements