1. Royal Lancaster Infirmary; Patient Safety Research; Pointer Court 1, Ashton Road Lancaster UK LA1 1RP
2. Royal Lancaster Infirmary; Department of Anaesthesia; Ashton Road Lancaster UK
3. Ayr Hospital; Department of Anaesthetics; Dalmellington Road Ayr Ayrshire UK KA6 6DX
4. Royal Preston Hospital; Department of Anaesthetics; Sharoe Green Lane North Fulwood Preston, Lancashire UK PR2 9HT