1. Imperial College London; National Heart and Lung Institute; London UK
2. University of Birmingham; Department of Primary Care and General Practice; Edgbaston Birmingham UK BI5 2TT
3. University of York; Medicines Evaluation Group, Centre for Health; Heslington York UK YO10 5DD
4. University of York; Health Sciences and Clinical Evaluation; Alcuin College HESLINGTON York Yorkshire UK YO10 5DD
5. University of Warwick; Warwick Medical School - Health Sciences; Gibbet Hill Campus Coventry UK CV4 7AL