Study protocol for IMPRoVE: a multicentre prospective observational cohort study of the incidence, impact and mechanisms of perioperative right ventricular dysfunction in non-cardi... oleh Colin Berry, Nicola Greenlaw, Gareth Ackland, Philip McCall, Benjamin Shelley, Thomas Keast, Malcolm Watson, Sonya McKinlay, Rachel Kearns, Keith E Robertson, James McErlane, Indran Raju