Turon, M. Fernandez-Gonzalo, S. Jodar, M. Gomà, G. Montanya, J. Hernando, D. Bailón, R. de Haro, C. Gomez-Simon, V. Lopez-Aguilar, J. Magrans, R. Martinez-Perez, M. Oliva, J.C. Blanch, L. Feasibility and safety of virtual-reality-based early neurocognitive stimulation in critically ill patients Ann. intensive care 10.1186/s13613-017-0303-4 2017 2017