The Perioperative Quality Improvement Programme (PQIP patient study): protocol for a UK multicentre, prospective cohort study to measure quality of care and outcomes after major su... oleh S. Ramani Moonesinghe, Dermot McGuckin, Peter Martin, James Bedford, Duncan Wagstaff, David Gilhooly, Cristel Santos, Jonathan Wilson, Jenny Dorey, Irene Leeman, Helena Smith, Cecilia Vindrola-Padros, Kylie Edwards, Georgina Singleton, Michael Swart, Rachel Baumber, Arun Sahni, Samantha Warnakulasuriya, Ravi Vohra, Helen Ellicott, Anne-Marie Bougeard, Maria Chazapis, Aleksandra Ignacka, Martin Cripps, Alexandra Brent, Sharon Drake, James Goodwin, Dorian Martinez, Karen Williams, Pritam Singh, Matthew Bedford, Abigail E. Vallance, Katie Samuel, Jose Lourtie, Dominic Olive, Christine Taylor, Olga Tucker, Giuseppe Aresu, Andrew Swift, Naomi Fulop, Mike Grocott, for the PQIP Project team and Clinical Reference Group