Allan D Struthers1, Jacob George2. 1. From the Division of Cardiovascular and Diabetes Medicine, University of Dundee, Ninewells Hospital and Medical School, Dundee, Scotland. a.d.struthers@dundee.ac.uk. 2. From the Division of Cardiovascular and Diabetes Medicine, University of Dundee, Ninewells Hospital and Medical School, Dundee, Scotland.