[1] Western Hosp, Melbourne, Vic, Australia
[2] Univ Hosp Leuven, Leuven, Belgium
[3] Univ Catholique Louvain Hosp, Brussels, Belgium
[4] Univ Hosp Cologne, Cologne, Germany
[5] Clin & Gen Practice Internal Med, Jena, Germany
[6] AstraZeneca, Macclesfield, Cheshire, England
[7] AstraZeneca, Loughborough, Leics, England