1. Yannos S, Athanasios P. History of biliary surgery. World Journal of Surgery. 2013;37(5):1006-1012. DOI: 10.1007/s00268-013-1960-6
2. Eurostat. Surgical Operations and Procedures Statistics [Internet]. 2020. Available from: https://ec.europa.eu/eurostat/statistics-explained/index.php?title=Surgical_operations_and_procedures_statistics#Number_of_surgical_operations_and_procedures [Accessed: 08 June 2021]
3. Skandalakis JE, Colborn GL, Weidman TA, et al. Skandalakis' Surgical Anatomy. 1st ed. Broken Hill. PMP; 2004. p. 1720. ISBN-10: 9789603990741
4. Uptodate [Internet]. Wolters Kluwer Inc. UpToDate: The Clinical Answers You Need—Anytime, Anywhere [Updated: 01 September 2020; cited: 05 July 2021]. Approach to the Management of Gallstones. Available from: https://www.uptodate.com/contents/approach-to-the-management-of-gallstones?topicRef=3685&source=see_link Subscription required
5. Uptodate [Internet]. Wolters Kluwer Inc. UpToDate: The Clinical Answers You Need—Anytime, Anywhere [Updated: 21 May 2021; cited: 05 July 2021]. Gallbladder Cancer: Epidemiology, Risk Factors, Clinical Features, and Diagnosis. Available from: https://www.uptodate.com/contents/gallbladder-cancer-epidemiology-risk-factors-clinical-features-and-diagnosis?topicRef=673&source=see_link. Subscription required