1. Hall MJ , DeFrances CJ , Williams SN . National hospital discharge survey: 2007 summary. Natl Health Stat Report 2010;26.
2. NHS Digital . Hospital Admitted Patient Care Activity, 2016-17 - NHS Digital, 2018. Available: https://digital.nhs.uk/data-and-information/publications/statistical/hospital-admitted-patient-care-activity/2016-17#related-links [Accessed 25 Jul 2018].
3. Digestive and liver diseases statistics, 2004
4. National Hospital ambulatory medical Care Survey: 2007 emergency department summary;Niska;Natl Health Stat Report,2010
5. The continuing challenge of early mortality in acute pancreatitis