Effect of fresh vs. standard-issue red blood cell transfusions on multiple organ dysfunction syndrome in critically ill pediatric patients: a randomized clinical trial - Spinella, P C; Tucci, M; Fergusson, D A; ABC-PICU Investigators, the Canadian Critical Care Trials Group, the Pediatric Acute Lung Injury and Sepsis Investigators Network, the BloodNet Pediatric Critical Care Blood Research Network, and the Groupe Francophone de Réanimation et Urgences P (JAMA, 2019)