References:

1 Fuger M,Desmoulins C,Khen Dunlop N,et al.Bowel obstruction due to ingestion of a water-absorbing bead[J].Archives de pédiatrie:organe officiel de la Sociéte francaise de peédiatrie,2018,25(2):136-138.DOI:10.1016/j.arcped.2017.12.004.
2 Birk M,Bauerfeind P,Deprez PH,et al.Removal of foreign bodies in the upper gastrointestinal tract in adults:European Society of Gastrointestinal Endoscopy (ESGE) clinical guideline[J].Endoscopy,2016,48(5):489-496.DOI:10.1055/s-0042-100456.
3 冯杰雄,王美文.儿童肠梗阻的诊断与鉴别诊断[J].中国小儿急救医,2011,18(6):488-490.DOI:10.3760/cma.j.issn.1673-4912.2011.06.003. Feng YJ,Wang MW.Diagnosis and differential diagnosis of intestinal obstruction in children[J].Chin Pediatr Emerg Med,2011,18(6):488-490.DOI:10.3760/cma.j.issn.1673-4912.2011.06.003.
4 Darracq MA,Cullen J,Rentmeester L,et al.Orbeez:the magic water absorbing bead-risk of pediatric bowel obstruction?[J].Pediatric Emergency Care,2015,31(6):416-418.DOI:10.1097/PEC.0000000000000304.
5 Dahshan A.Management of ingested foreign bodies in children[J].J Okla State Med Assoc,2001,94(6):183-186.
6 Zamora IJ,Vu LT,Larimer EL.Water-absorbing balls:a "growing" problem[J].Pediatrics,2012,130(4):e1011-e1014.DOI:10.1542/peds.2011-3685.
7 Cairns R,Brown JA.Dangerous toys:the expanding problem of water-absorbing beads[J].The Medical journal of Australia,2016,205(11):528.DOI:10.5694/mja16.00936.
8 Kay M,Wyllie R.Techniques of foreign body removal in infants and children[J].Techniques in Gastrointestinal Endoscopy,2002,4(4):188-195.DOI:10.1053/tgie.2002.37446.
9 Uyemura MC.Foreign body ingestion in children[J].American Family Physician,2005,72(2):287-291.
10 Arana A,Hauser B,Hachimi-Idrissi S.Management of ingested foreign bodies in childhood and review of the literature[J].Eur J Pediatr,2001,160(8):468-472.DOI:10.1007/s004310100788.
11 Jackson J,Randell KA,Knapp JF.Two year old with water bead ingestion[J].Pediatric Emerg Care,2015,31(8):605-607.DOI:10.1097/PEC.0000000000000520.
12 Moammar H,Al-Edreesi M,Abdi R.Sonographic diagnosis of gastric-outlet foreign body:case report and review of literature[J].J Family Community Med,2009,16(1):33-36.
13 Ginsberg MJ,Ellis GL,Flom LL.Detection of soft tissue foreign bodies by plain radiography,xerography,computerized tomography,and ultrasonography[J].Ann Emerg Med,1990,19(6):701-703.DOI:10.1016/s0196-0644(05)82483-7.
14 Caspi B,Zalel Y,Elchalal U,et al.Sonographic detection of vaginal foreign bodies[J].J Ultrasound Med,1994,13(3):236-237.DOI:10.7863/jum.1994.13.3.236.
15 李晓英,杨秀珍,徐彬,等.超声诊断水晶球致小儿肠梗阻3例[J].临床小儿外科杂志,2019,18(6):527-528.DOI:10.3969/j.issn.1671-6353.2019.06.018. Li XY,Yang XZ,Xu B,et al.Ultrasonic diagnosis of pediatric intestinal obstruction due to crystal ball:a report of three cases[J].J Clin Ped Sur,2019,18(6):527-528.DOI:10.3969/j.issn.1671-6353.2019.06.018.
16 Cheng G,Soboleski D,Daneman A,et al.Sonographic pitfalls in the diagnosis of enteric duplication cysts[J].AJR Am J Roentgenol,2005,184(2):521-525.DOI:10.2214/ajr.184.2.01840521.
17 Godfrey H,Abernethy L,Boothroyd A.Torsion of an ovarian cyst mimicking enteric duplication cyst on transabdominal ultrasound:two cases[J].Pediatr Radiol,1998,28(3):171-173.DOI:10.1007/s002470050322.
18 Li ZS,Sun ZX,Zou DW,et al.Endoscopic management of foreign bodies in the upper-GI tract:experience with 1088 cases in China[J].Gastrointest Endosc,2006,64(4):485-492.DOI:10.1016/j.gie.2006.01.059.
19 Antoniou D,Christopoulos-Geroulanos G.Management of foreign body ingestion and food bolus impaction in children:a retrospective analysis of 675 cases[J].Turk J Pediatr,2011,53(4):381-387.
20 Webb WA.Management of foreign bodies of the upper gastrointestinal tract:update[J].Gastrointestinal Endoscopy,1995,41(1):39-51.DOI:10.1016/S0016-5107(95)70274-1.
21 刘海峰,左楚清,黄茂华,等.消化内镜在小儿消化道异物诊疗中的应用[J].中华小儿外科杂志,2005,26(2):107-108.DOI:10.3760/cma.j.issn.0253-3006.2005.02.017. Liu HF,Zuo CQ,Huang MH,et al.Application of digestive endoscopy in the diagnosis and treatment of foreign body in pediatric digestive tract[J].Chin J Pediatr Surg,2005,26(2):107-108.DOI:10.3760/cma.j.issn.0253-3006.2005.02.017.
22 Bax NM,Ure BM,van der Zee DC.Laparoscopic duodenoduodenostomy for duodenal atresia[J].Surgical Endoscopy,2001,15(2):217.DOI:10.1007/s004640042009.
23 肖尚杰,杨文熠,朱小春,等.腹腔镜治疗54例新生儿先天性十二指肠梗阻的疗效分析[J].临床小儿外科杂志,2019,18(2):141-146.DOI:10.3969/j.issn.1671-6353.2019.02.014. Xiao SJ,Yang WY,Zhu XC,et al.Analysis of laparoscopic diagnosis and treatment for neonates with congenital duodenal obstruction:a report of 54 cases[J].Clin Ped Sur,2019,18(2):141-146.DOI:10.3969/j.issn.1671-6353.2019.02.014.