Joseph Arrowsmith is a Consultant Anaesthetist at the Royal Papworth Hospital, Cambridge, and a former examiner for the Royal College of Anaesthetists, London. Andrew Roscoe is currently a Consultant Anaesthetist at the National Heart Centre, Singapore General Hospital and formerly held Consultant posts in Toronto, Canada and Papworth. Jonathan Mackay is a former Chairman of the UK Association of Cardiothoracic Anaesthetists and recently retired Papworth Consultant Anaesthetist.