1 Department of Medicine, Milton Keynes University Hospital NHS Foundation Trust, Eaglestone, Milton Keynes, UK. Electronic address: philip.moseley2@gmail.com.
2 Department of Critical Care, Milton Keynes University Hospital NHS Foundation Trust, Eaglestone, Milton Keynes, UK.
3 Department of Medicine, Milton Keynes University Hospital NHS Foundation Trust, Eaglestone, Milton Keynes, UK.
4 Department of Biochemistry, Milton Keynes University Hospital NHS Foundation Trust, Eaglestone, Milton Keynes, UK.
5 Department of Microbiology, Milton Keynes University Hospital NHS Foundation Trust, Eaglestone, Milton Keynes, UK.