Leukodepleted Packed Red Blood Cells Transfusion in Patients Undergoing Major Cardiovascular Surgical Procedure: Systematic Review and Meta-Analysis. - Simancas-Racines, Daniel; Arevalo-Rodriguez, Ingrid; Urrutia, Gerard; Buitrago-Garcia, Diana; Núñez-González, Solange; Martínez-Zapata, María José; Madrid, Eva; Bonfill, Xavier; Hidalgo-Ottolenghi, Ricardo (Cardiology Research & Practice, 2019)