Letter to the editor: Machine perfusion and acute rejection: Not as simple as it seems - the influence of retransplantation.

1Department of Cellular Pathology, Queen Elizabeth Hospital Birmingham, Birmingham, UK 2Institute of Immunology and Immunotherapy, University of Birmingham, Birmingham, UK 3Liver Unit, Queen Elizabeth Hospital Birmingham, Birmingham, UK Financial support and sponsorship: none Abbreviations: NMP normothermic machine perfusion Correspondence Prof Desley Neil, Department of Cellular Pathology, Level -1, Queen Elizabeth Hospital Birmingham, Birmingham, UK. B15 2GW. Email: [email protected]