Making do with what we have: use your bootstraps

Department of Medicine, University of California, Los Angeles, Cardiovascular Research Laboratory at UCLA, Los Angeles, CA, USA, Department of Anaesthesia and Pain Medicine, University of Edinburgh, Royal Infirmary, Edinburgh, UK, and Cancer Research UK, Cambridge Research Institute, Li Ka Shing Centre, Cambridge, UK Correspondence Dr Gordon B Drummond, Department of Anaesthesia and Pain Medicine, University of Edinburgh, Royal Infirmary, Edinburgh, 51 Little France Crescent, Edinburgh EH16 4HA, UK. E-mail: g.b.drummond@ed.ac.uk