1. Confidential inquiry into the quality of care before admission to intensive care;McQuillian;BMJ,1998
2. Unexpected deaths and referrals to intensive care of patients on general wards. Are some cases potentially avoidable?;McGloin;J R Coll Physicians Lond,1999
3. Outreach and early warning systems (EWS) for the prevention of intensive care admission and death of critically ill adult patients on general hospital wards;McGaughey;Cochrane Database Syst Rev,2007
4. An early warning scoring system for detecting developing critical illness;Morgan;Clin Intensive Care,1997
5. Can we distinguish patients at risk of deterioration?;McCrossan;Crit Care,2006