1. Shortage of perioperative drugs: implications for anesthesia practice and patient safety;De Oliveira;Anesthesia and Analgesia,2011
2. Ensuring a sustainable supply of drugs for anaesthesia and peri-operative care;Ferguson;Anaesthesia,2012
3. NHS Institute for Innovation and Improvement Lean - seven wastes 2008 http://www.institute.nhs.uk/quality_and_service_improvement_tools/quality_and_service_improvement_tools/lean_-_7_wastes.html
4. H.R.3839 - Drug Shortage Prevention Act of 2012 https://www.congress.gov/bill/112th-congress/house-bill/3839
5. All-Party Pharmacy Group APPG Medicines Shortages Inquiry 2012 http://www.appg.org.uk/Medicine-Shortages.php