Original research
Hospital-level evaluation of the effect of a national quality improvement programme: time-series analysis of registry data
Timothy J Stephens, Carol J Peden, Ryan Haines, Mike P W Grocott, Dave Murray, David Cromwell, Carolyn Johnston, Sarah Hare, Jose Lourtie, Sharon Drake, Graham P Martin, Rupert M Pearse On behalf of Enhanced Perioperative Care for High-risk patients (EPOCH) trial group
doi: 10.1136/bmjqs-2019-009537
