Spence, J., Belley-Côté, E., Jacobsohn, E., Lee, S. F., Whitlock, R., Bangdiwala, S., Syed, S., Sarkaria, A., MacIsaac, S., Lengyel, A., Long, S., Um, K., McIntyre, W. F., Kavosh, M., Fast, I., Arora, R., Lamy, A., Connolly, S., & Devereaux, P. (2020). restricted versus liberal intraoperative benzodiazepine use in cardiac anaesthesia for reducing delirium (B-Free Pilot): a pilot, multicentre, randomised, cluster crossover trial. British journal of anaesthesia, 125, 38–46. http://access.bl.uk/ark:/81055/vdc_100104102739.0x000064