[1] Univ Aberdeen, Aberdeen Cardiovasc & Diabet Ctr, Polwarth Bldg,Foresterhill, Aberdeen, Scotland
[2] NHS Grampian, Aberdeen, Scotland
[3] Biomath & Stat Scotland, Aberdeen, Scotland
[4] Univ Hosp Ayr, NHS Ayrshire & Arran, Ayr, Scotland
[5] Hairmyres Hosp, NHS Lanarkshire, East Kilbride, Scotland
[6] Univ Dundee, Dundee, Scotland
[7] Ninewells Hosp, NHS Tayside, Dundee, Scotland
[8] Raigmore Hosp, NHS Highland, Inverness, Scotland
[9] Univ Glasgow, Inst Cardiovasc & Med Sci, Glasgow City, Scotland
[10] Univ Edinburgh, Ctr Biomed Self & Soc, Usher Inst, Edinburgh EH8 9LN, Midlothian, Scotland
[11] Univ Edinburgh, British Heart Fdn Ctr Res Excellence, Edinburgh, Scotland
[12] NHS Lothian, Edinburgh, Scotland