1. Position statement on intensive care nursing staffing;Australian College of Critical Care Nurses [ACCCN];Aust Crit Care,2002
2. Minimum standards for intensive care units;The Joint Faculty of Intensive Care Medicine [JFICM],2003
3. Position statement: nurse–patient ratios in critical care;British Association of Critical Care Nurses [BACCN];Nurs Crit Care,2001
4. Resourcing critical care;Harris,2007
5. Royal College of Nursing guidance for nurse staffing in ICU;Galley,2003