Lessons in cognitive unloading, skills mixing, flattened hierarchy and organisational agility from the Nightingale Hospital London during the first wave of the SARS-CoV-2 pandemic oleh Ben O'Brien, Richard Schilling, Andrew Wragg, Alastair Proudfoot, Nikhil Ahluwalia, Mark Westwood, Charles Knight, George Benjamin Collins, Lynne Arrol, Natalie Forrest, Alan McGlennan, Matthew Trainer, Eamonn Sullivan