[1] Univ Nottingham, Stroke Trials Unit, Mental & Hlth Clin Neurosci, Nottingham, England
[2] Univ Nottingham, Div Clin Neurosci, Stroke, Nottingham, England
[3] Univ Manchester, Div Diabet Endocrinol & Gastroenterol, Manchester, Lancs, England
[4] Univ Nottingham, Hlth Econ, Nottingham, England
[5] Univ Nottingham, Nottingham Clin Trials Unit, Nottingham, England
[6] Univ Manchester, Div Cardiovasc Sci, Manchester, Lancs, England