| Affiliation: | 1.Centre for Health Services Research, School of Health Sciences, City,University of London,London,UK;2.School of Mathematics, Computer Science, Engineering, City,University of London,London,UK;3.Institute of Health Sciences,University of Leeds,Leeds,UK;4.National Health Service Blood & Transplant, Oxford Radcliffe Hospitals,University of Oxford,Oxford,UK;5.Department of Medicine & Ottawa Hospital Research Institute,University of Ottawa,Ottawa,Canada;6.Centre for Outcomes Research and Effectiveness,University College London,London,UK |
