Briffa Norman, Chambers John B
From Sheffield Teaching Hospitals NHS Trust, University of Sheffield, and South Yorkshire Cardiothoracic Centre, Northern General Hospital, Sheffield, UK (N.B.); and Guy's and St Thomas Hospitals, London, UK (J.B.C.).
Circulation. 2017 Mar 21;135(12):1101-1103. doi: 10.1161/CIRCULATIONAHA.116.026385.