Variability on red blood cell transfusion practices among brazilian neonatal intensive care units - Santos, Amélia Miyashiro Nunes dos; Guinsburg, Ruth; Procianoy, Renato Soibelmann; Sadeck, Lílian dos Santos Rodrigues; Netto, Abimael Aranha; Rugolo, Ligia M.; Luz, Jorge H.; Bomfim, Olga; Martinez, Francisco Eulógio; Almeida, Maria Fernanda Branco de (Transfusion, 2010)