References  
1. Benninga MA, Faure C, Hyman PE et al. Childhood Functional Gastrointestinal Disorders: Neonate/Toddler. Gastroenterology2016 Feb 15; DOI: 10.1053/j.gastro.2016.02.016.
2. Verner JV, Morrison AB. Islet cell tumor and a syndrome of refractory watery diarrhea and hypokalemia. Am J Med 1958; 25: 374-380
3. Bloom SR, Polak JM, Pearse AG. Vasoactive intestinal peptide and watery-diarrhoea syndrome. Lancet 1973; 2: 14-16
4. Fuchs J, Schafbuch L, Ebinger M et al. Minimally invasive surgery for pediatric tumors - current state of the art. Front Pediatr 2014; 2: 48
5. Malkan AD, Loh AH, Sandoval JA. Minimally invasive surgery in the management of abdominal tumors in children. J Pediatr Surg 2014; 49: 1171-1176
6. Boo YJ, Goedecke J, Muensterer OJ. Pediatric oncologic endosurgery.Int J Surg Oncol (N Y) 2017 Aug 2: e30. DOI:10.1097/IJ9.0000000000000030.2017.08.20
7. Harumatsu T, Nagai T, Yano K et al. Differential advantage of liver retraction methods in laparoscopic fundoplication for neurologically impaired patients: a comparison of three kinds of procedures.Pediatr Surg Int 2020; 36: 591-596
8. Shimada H, Ambros IM, Dehner LP et al. The International Neuroblastoma Pathology Classification (the Shimada system).Cancer 1999; 86: 364-372
9. Anderson CW, Bennett JJ. Clinical Presentation and Diagnosis of Pancreatic Neuroendocrine Tumors. Surg Oncol Clin N Am 2016; 25: 363-374
10. Belei OA, Heredea ER, Boeriu E et al. Verner-Morrison syndrome. Literature review. Rom J Morphol Embryol 2017; 58: 371-376
11. Bourdeaut F, de Carli E, Timsit S et al. VIP hypersecretion as primary or secondary syndrome in neuroblastoma: A retrospective study by the Société Française des Cancers de l’Enfant (SFCE). Pediatr Blood Cancer 2009; 52: 585-590
12. Tiedemann K, Pritchard J, Long R et al. Intractable diarrhoea in a patient with vasoactive intestinal peptide-secreting neuroblastoma. Attempted control by somatostatin. Eur J Pediatr 1981; 137: 217-219
13. Kabalan P, Gifford AJ, Ziegler DS. Unresectable VIP-secreting neuroblastoma: Efficacy of debulking and steroids for symptom control.Pediatr Blood Cancer 2018; 65: e27358
14. Fernández-Cruz L, Cosa R, Blanco L et al. Curative laparoscopic resection for pancreatic neoplasms: a critical analysis from a single institution. J Gastrointest Surg 2007; 11: 1607-1621; discussion 1621-1602
15. International Pediatric Endosurgery Group guidelines for the surgical treatment of adrenal masses in children. J Laparoendosc Adv Surg Tech A 2010; 20: vii-ix
16. Parhar D, Joharifard S, Lo AC et al. How well do image-defined risk factors (IDRFs) predict surgical outcomes and survival in patients with neuroblastoma? A systematic review and meta-analysis. Pediatr Surg Int 2020; 36: 897-907