Queen Elizabeth Hospitals NHS Foundation Trust - PIONEER Health Data Research Hub in Acute Care, University of Birmingham, University Hospitals Birmingham NHS Foundation Trust, University of Birmingham, University of Birmingham, University Hospitals Birmingham NHS Foundation Trust, University of Birmingham - PIONEER Health Data Research Hub for Acute Care, University Hospitals Birmingham NHS Foundation Trust, University of Birmingham - Institute of Applied Health Research, University Hospitals Birmingham NHS Foundation Trust, University Hospitals Birmingham NHS Foundation Trust and University of Birmingham - PIONEER Health Data Research Hub for Acute Care