Lancet Respir Med.
Sinha P, Calfee CS, Cherian S, Brealey D, Cutler S, King C, Killick C, Richards O, Cheema Y, Bailey C, Reddy K, Delucchi KL, Shankar-Hari M, Gordon AC, Shyamsundar M, O'Kane CM, McAuley DF, Szakmany T
doi: 10.1016/S2213-2600(20)30366-0.