Physical activity levels, primary care costs and quality-adjusted life years (QALYs) in survivors of critical illness
Angela McNelly, Ritesh Maharaj, Jai Rawal, Pearl Chan, Nicholas Hopkinson, John Moxham, Steven Harridge, Nicholas Hart, Hugh Montgomery, Zudin Puthucheary
European Respiratory Journal Sep 2014, 44 (Suppl 58) P3688;