1. School of Nursing and Midwifery; Trinity College Dublin; Dublin Ireland
2. School of Nursing and Midwifery; National University of Ireland Galway; Galway Ireland
3. HRB-Trials Methodology Research Network; National University of Ireland Galway; Galway Ireland
4. Evidence Synthesis Ireland and Cochrane Ireland; Galway Ireland
5. University College Dublin; Dublin Ireland
6. Australian and New Zealand Intensive Care Research Centre, Monash University, Melbourne, Australia and The Department of Intensive Care; The Alfred Hospital; Melbourne Australia
7. Cork University Hospital; Cork Ireland