Hennis, P.J., Meale, P.M., Hurst, R.A., O'Doherty, Alasdair Fraser ORCID: https://orcid.org/0000-0002-9953-9772, Otto, J., Kuper, M., Harper, N., Sufi, P.A., Heath, D., Montgomery, H.E. and Grocott, M.P.W. (2012) Cardiopulmonary exercise testing predicts postoperative outcome in patients undergoing gastric bypass surgery. British Journal of Anaesthesia, 109 (4). pp. 566-571.