1. Association of Anaesthetists(2019)Guidelines for day case surgery offer information and guidance on day care and short stay surgery.https://anaesthetists.org/Home/Resources‐publications/Guidelines/Day‐case‐surgery.
2. British Association of Day Surgery publish an annualDirectory of Procedureswhich provides aspirational benchmarks for day surgery (including outpatient surgery).https://daysurgeryuk.net/en/home.
3. Oxford Handbook of Trauma and Orthopaedic Nursing
4. Model Hospital is a free digital tool which enables trusts to compare their productivity and identify opportunities to improvise. The database contains published Getting It Right First Time and British Assiciation of Day Surgery day‐case metrics across an array of specialties.http://www.model.nhs.uk.