Affiliation: | 1. Department of Cardiothoracic Surgery, Victoria Hospital, Blackpool, United Kingdom;2. Department of Cardiothoracic Anesthesia, Victoria Hospital, Blackpool, United Kingdom;3. Department of Neurology, Victoria Hospital, Blackpool, United Kingdom;4. Department of Respiratory Medicine, Victoria Hospital, Blackpool, United Kingdom;5. Department of Thoracic Surgery, Birmingham Heartlands Hospital, Birmingham, United Kingdom |