1. Patient Safety Indicators Overview . 2006 http://www.qualityindicators.ahrq.gov/psi_download.htm
2. Premier Healthcare Alliance Premier Hospital Quality Incentive Demonstration 2008 http://www.premierinc.com/quality-safety/tools-services/p4p/hqi/index.jsp
3. Department of Human Services AusPSI Patient Safety Indicators 2008 http://www.health.vic.gov.au/psi/auspsi
4. Australian Government Department of Health and Ageing. Australian Refined Diagnosis Related Groups (AR-DRG) 2009 http://www.health.gov.au/internet/main/publishing.nsf/Content/health-casemix-ardrg1.htm