Wylam Mark E, Kennedy Cassie C, Hernandez Nina M, Peters Steve G, Maleszewski Joseph J, Cassivi Stephen D, Scott John P
Division of Pulmonary and Critical Care Medicine, Mayo Clinic College of Medicine, Rochester, MN, USA.
Lancet. 2013 Dec 7;382(9908):1956. doi: 10.1016/S0140-6736(13)62115-7.