1. Bedewi MA, et al. Prevalence of adult paraumbilical hernia. Assessment by high‐resolution sonography: a hospital‐based study. Hernia 2012; 16: 59–62.
2. Burcharth J, Pedersen MS, et al. The prevalence of umbilical and epigastric hernia repair: a nationwide epidemiologic study. Hernia 2015; 19: 815–819.
3. Muysoms FE, Miserez M, et al. Classification of primary and incisional abdominal wall hernias. Hernia 2009; 13: 407–414.
4. Muysoms F, Campanelli G, et al. EuraHS: the development of an international online platform for registration and outcome measurement of ventral abdominal wall hernia repair. Hernia 2012; 16: 239–250.
5. Cherla DV, Lew DF, et al. Differences of alternative methods of measuring abdominal wall hernia defect size: a prospective observational study. Surg Endosc 2018; 32: 1228–1233.
6. Helgstrand F, Jørgensen LN, et al. Nationwide prospective study on readmission after umbilical or epigastric hernia repair. Hernia 2013; 17: 487–492.
7. Henriksen NA, Montgomery A, et al; European and Americas Hernia Societies (EHS and AHS). Guidelines for treatment of umbilical and epigastric hernias from the European Hernia Society and Americas Hernia Society. Br J Surg. 2020 Feb;107(3):171-190.
8. Kokotovic D, Sjølander H, et al. Watchful waiting as a treatment strategy for patients with a ventral hernia appears to be safe. Hernia 2016; 20: 281–287.
9. Holihan JL, Flores‐Gonzalez JR, et al. A prospective assessment of clinical and patient‐reported outcomes of initial non‐operative management of ventral hernias. World J Surg 2017; 41: 1267–1273.
10. Liang MK, Holihan JL, et al. Ventral hernia management: expert consensus guided by systematic review. Ann Surg 2017; 265: 80–89.
11. Martindale RG, Deveney CW. Preoperative risk reduction: strategies to optimize outcomes. Surg Clin North Am 2013; 93: 1041–1055.
12. Christoffersen MW, Helgstrand F, et al. Long‐term recurrence and chronic pain after repair for small umbilical or epigastric hernias: a regional cohort study. Am J Surg 2015; 209: 725–732.
13. Bisgaard T, Kaufmann R, et al. Lower risk of recurrence after mesh repair versus non‐mesh sutured repair in open umbilical hernia repair: a systematic review and meta‐analysis of randomized controlled trials. Scand J Surg 2018; 108: 187–193.
14. Birindelli A, Sartelli M, et al. 2017 update of the WSES guidelines for emergency repair of complicated abdominal wall hernias. World J Emerg Surg 2017; 12: 37.
15. Kaufmann R, Halm JA, et al. Mesh versus suture repair of umbilical hernia in adults: a randomised, double‐blind, controlled, multicentre trial. Lancet 2018; 391: 860–869.
16. Ponten JEH, Leenders BJM, et al. Mesh versus patch repair for epigastric and umbilical hernia (MORPHEUS Trial); one‐year results of a randomized controlled trial. World J Surg 2018; 42: 1312–1320.
17. Muysoms F, Jacob B. International Hernia Collaboration consensus on nomenclature of abdominal wall hernia repair. World J Surg 2018; 42: 302–304.
18. Hajibandeh S, Hajibandeh S, et al. Laparoscopic versus open umbilical or paraumbilical hernia repair: a systematic review and meta‐analysis. Hernia 2017; 21: 905–916.
19. Köhler G, Luketina RR, et al. Sutured repair of primary small umbilical and epigastric hernias: concomitant rectus diastasis is a significant risk factor for recurrence. World J Surg 2015; 39: 121–126.
20. Shankaran V, Weber DJ, et al. A review of available prosthetics for ventral hernia repair. Ann Surg 2011; 253: 16–26.
21. Bencini L, Sánchez LJ. Learning curve for laparoscopic ventral hernia repair. Am J Surg 2004; 187: 378–382.
22. Hadisaputra W. Perkembangan Laparoskopi Operatif di Indonesia. Perkembangan Laparoskopi Operatif Vol. 2, No.2, April 2014.