[1] Leeds Teaching Hosp Trust, Med Management Serv, Leeds LS1 3EX, W Yorkshire, England
[2] Leeds Teaching Hosp Trust, Pharm Serv, Leeds LS1 3EX, W Yorkshire, England
[3] Univ Leeds, Leeds Inst Cardiovasc & Metab Med, Leeds LS2 9NL, W Yorkshire, England
[4] Leeds Teaching Hosp NHS Trust, Cardiol Dept, Great George St, Leeds LS1 3EX, W Yorkshire, England
[5] Univ Highlands & Isl, Ctr Hlth Sci, Sch Hlth Social Care & Life Sci, Dept Nursing & Midwifery, Old Perth Rd, Inverness IV2 3JH, Scotland
[6] Zealand Univ Hosp, Dept Cardiol, Sygehus 10, DK-4000 Roskilde, Denmark
[7] Univ Southern Denmark, Dept Reg Hlth Res, Odense, Denmark
[8] Cyprus Univ Technol, Sch Hlth Sci, Dept Nursing, Limassol, Cyprus
[9] Univ Roma Tor Vergata, Dept Biomed & Prevent, Via Montpellier 1, I-00133 Rome, Italy
[10] Florence Nightingale Fac Nursing Midwifery & Pall, James Clerk Maxwell Bldg,57 Waterloo Rd, London SE1 8WA, England