Psychological Outcomes following a nurse-led Preventative Psychological Intervention for critically ill patients (POPPI): protocol for a cluster-randomised clinical trial of a complex intervention
Alvin Richards-Belle, Paul R Mouncey, Dorothy Wade, Chris R Brewin, Lydia M Emerson, Richard Grieve, David A Harrison, Sheila Harvey, David Howell, Monty Mythen, Zia Sadique, Deborah Smyth, John Weinman, John Welch, Kathryn M Rowan
BMJ Open Feb 2018, 8 (2) e020908; DOI: 10.1136/bmjopen-2017-020908