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1 Nuffield Department of Medicine, John Radcliffe Hospital, University of Oxford, Oxford, OX3 9DU, UK. Electronic address: timothy.walker@ndm.ox.ac.uk.
2 Nuffield Department of Medicine, John Radcliffe Hospital, University of Oxford, Oxford, OX3 9DU, UK.
3 National Mycobacterial Reference Service, National Infection Service, Public Health Laboratory Birmingham, Heartlands Hospital, Bordesley Green, Birmingham, UK.
4 Radcliffe Department of Medicine, John Radcliffe Hospital, University of Oxford, OX3 9DU, UK.
5 Nuffield Department of Medicine, John Radcliffe Hospital, University of Oxford, Oxford, OX3 9DU, UK; National Infection Service, Public Health England, London, UK.
1 Nuffield Department of Medicine, John Radcliffe Hospital, University of Oxford, Oxford, OX3 9DU, UK. Electronic address: timothy.walker@ndm.ox.ac.uk.
2 Nuffield Department of Medicine, John Radcliffe Hospital, University of Oxford, Oxford, OX3 9DU, UK.
3 National Mycobacterial Reference Service, National Infection Service, Public Health Laboratory Birmingham, Heartlands Hospital, Bordesley Green, Birmingham, UK.
4 Radcliffe Department of Medicine, John Radcliffe Hospital, University of Oxford, OX3 9DU, UK.
5 Nuffield Department of Medicine, John Radcliffe Hospital, University of Oxford, Oxford, OX3 9DU, UK; National Infection Service, Public Health England, London, UK.