Liberal red blood cell transfusions impair quality of life after cardiac surgery A. González-Pérez, J.Z. Al-Sibai, P. Álvarez-Fernández, P. Martínez-Camblor, M. Argüello-Junquera, J.M. García-Gala, E. Martínez-Revuelta, J. Silva, C. Morís, G.M. Albaiceta

Association between storage age of transfused red blood cells and clinical outcomes in critically ill adults: A meta-analysis of randomized controlled trials X. Zhou, Z. Xu, Y. Wang, L. Sun, W. Zhou, X. Liu

Intensive care admission and hospital mortality in the elderly after non-cardiac surgery M. de Nadal, S. Pérez-Hoyos, J.C. Montejo-González, R. Pearse, C. Aldecoa