Section for Transfusion Medicine, Rigshospitalet, Capital Region Blood Bank, Copenhagen University Hospital, Copenhagen, Denmark. Electronic address: harald.sorwad.welling@regionh.dk. Department of Clinical Immunology, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark. Electronic address: sisse.rye.ostrowski@regionh.dk. Section for Transfusion Medicine, Rigshospitalet, Capital Region Blood Bank, Copenhagen University Hospital, Copenhagen, Denmark; Department of Anaesthesiology, Centre of Head and Orthopaedics, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark. Electronic address: jakob.stensballe@regionh.dk. Department of Anaesthesiology, Centre of Head and Orthopaedics, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark. Electronic address: martin.risom.vestergaard.01@regionh.dk. Department of Burn Surgery, Centre of Head and Orthopaedics, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark. Electronic address: soeren.partoft@regionh.dk. Department of Intensive Care, Abdominal Centre, Copenhagen University Hospital, Rigshospitalet, Denmark. Electronic address: jonathan.oliver.white@regionh.dk. Section for Transfusion Medicine, Rigshospitalet, Capital Region Blood Bank, Copenhagen University Hospital, Copenhagen, Denmark; Department of Surgery, Division of Acute Care Surgery, Centre for Translational Injury Research (CeTIR), University of Texas Medical School at Houston, TX, USA; Centre for Systems Biology, The School of Engineering and Natural Sciences, University of Iceland, Iceland. Electronic address: per.johansson@regionh.dk.