CINXE.COM

<!DOCTYPE html><html lang="en-US"><head><title>Just a moment...</title><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta http-equiv="X-UA-Compatible" content="IE=Edge"><meta name="robots" content="noindex,nofollow"><meta name="viewport" content="width=device-width,initial-scale=1"><style>*{box-sizing:border-box;margin:0;padding:0}html{line-height:1.15;-webkit-text-size-adjust:100%;color:#313131;font-family:system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,Noto Sans,sans-serif,Apple Color Emoji,Segoe UI Emoji,Segoe UI Symbol,Noto Color Emoji}body{display:flex;flex-direction:column;height:100vh;min-height:100vh}.main-content{margin:8rem auto;max-width:60rem;padding-left:1.5rem}@media (width <= 720px){.main-content{margin-top:4rem}}.h2{font-size:1.5rem;font-weight:500;line-height:2.25rem}@media (width <= 720px){.h2{font-size:1.25rem;line-height:1.5rem}}#challenge-error-text{background-image:url(data:image/svg+xml;base64,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);background-repeat:no-repeat;background-size:contain;padding-left:34px}@media (prefers-color-scheme:dark){body{background-color:#222;color:#d9d9d9}}</style><meta http-equiv="refresh" content="390"></head><body class="no-js"><div class="main-wrapper" role="main"><div class="main-content"><noscript><div class="h2"><span id="challenge-error-text">Enable JavaScript and cookies to continue</span></div></noscript></div></div><script>(function(){window._cf_chl_opt={cvId: '3',cZone: "publications.waset.org",cType: 'managed',cRay: '91e884988a9ef93a',cH: 'Q1TSnw8BhtZ75iSbuBXDfOyI6lJ5Z.XKpTFbqWutxZM-1741669538-1.2.1.1-RarkbjlS3nr3cuDdFC4hiKwhJ7DUApaZupP3ZLWLkHv_CijUbY8lHmNBy.egob8A',cUPMDTk: "\/abstracts\/165591\/incidence-of-post-endoscopic-retrograde-cholangiopancreatography-biliary-ascariasis-diagnosed-on-ultrasound?__cf_chl_tk=MpnZybdl4.TDsb3YOqyRna6h1ftZ0lwFdOJtLaCmS_s-1741669538-1.0.1.1-K4qo3euOaC_vM7e8arLUCIttmMb_zF5B1vfIicjzeWU",cFPWv: 'g',cITimeS: '1741669538',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/abstracts\/165591\/incidence-of-post-endoscopic-retrograde-cholangiopancreatography-biliary-ascariasis-diagnosed-on-ultrasound?__cf_chl_f_tk=MpnZybdl4.TDsb3YOqyRna6h1ftZ0lwFdOJtLaCmS_s-1741669538-1.0.1.1-K4qo3euOaC_vM7e8arLUCIttmMb_zF5B1vfIicjzeWU",md: "E7tZomMJe6g241YP8.wH9AbJ4NcW64n1hxq.H_V0g_U-1741669538-1.2.1.1-sGNw9OmybTRwbMIiK8vIBW5.packJc4iHkBVVqHX.UZcul478R.RTShuh1vlxXV5GiWPQArwFuSo7K9mZdjYrsXn7cDo8TCJPQuhPM4D3e6gPi9XXgiuBFH92PGgyovm6cGwsSuWTgiOlVQah7uKhj5IgbscTDgyhAuRFjpErKCXCvBB19JbxVzolKjNnLX8qS9rzSXi0lbIceYXHSU4I3vDVIMAjR.NmZOUK1S4kCkPeVn2avEwXB5P_SydowCajHaNoBSHDFjUVzgH6S9St6d0r.3PE_xQGsCHRYJYmd9siW0I0T5p.chSubRsTfjduWAifB4zB3AFjI4wy8DbE67enFPsyE8BGtaTU.gABye1tHT6ryt1_RLS.WJAXSoYhCutUfgfeIE5u4O0pNfiUdSjMTeUSv.9nxb.vBtWuZ9eTZY2v_HsSyZbx6hjigC2CqevFBbfLp_X044He6yiTJ7ZexBM_Q5_9_3t1ozv4fpUiJ8Eey1ccAxqUDYiqwq5_pDN7B4ll4QQnJkpeyFl6mIN0jfxiV8wBxR2D99N.0.Nqr5Sn97woUEEqYkH5WODx93f1xxTUOodCwf29rurixzI6opN9NibJUVfpqu9jKlPqEf24pqxKwnfQ7tcdJhWarvNAJcQemV73YRXAspdrbdWhmkh0PnMgUVtufqnRR90auFbyUcRLfFAhRS.5SM.pjozYoLbDcIdfelxgKg2WFEb1dY6LKoP1JETElzemzG94d59vozRr46rokDx5GwbkEJ9bXHfveKMcsSoE0Yfqu7ynm.zcOfXzwlQguv690fqkvud0IMz7M1IRctSUCo_sDD6vGUNjw8FfuwsmS81mladm.nujw1j704BsYBwCtldLN.VizLJ6Ue2BUC3XVqpT0dNQrAB9XhpKabtxnUn2VcGQ9WatYiOt_zFNyXDWo6jGK55ueOv7mTKiUexLXjGtYx7BriOmUn_A5rOR591cJsYZudJ.26aMqCQ0y4eVxswmq4pqEbkzffRXUlyhNTw8Zj0bBzMxBmV7idVmKMpeehdCXFMDbn1_xAc55aao4wtzypvvK6FViMfZjrY6UJIwDq.H3gd5afH07er82Fjin9grQcquHEzeL5eEz1i5M0XVH.dhAKeJCMfl8kvL6oj9.2MOJbIrodMX.Uod3ztPQqMyEYTiNEBqfAlBR1JsIxsSvdI1AXKL_iq2uwlK1AvmEfIUndzh1fWfSztngzkaRf4fxdQYAEW1C6wrDwaCHNNCAAwTupisICRSol2WvvCIHfDYhbc.08XJvdCe291GHOx0azSJCFpMekTSmi.aACXQ1RdMIBam3Hr_2O1Lc4vnA9Go7TyOZMCZ9Cl1E2TqBEfkilVb4pQE2ArsXjtaaUAljSyvzV0yx06CFM4gPzCbpioVFJVUOqwd.ckYbbYkYtDOzs3.qE0r6gPVdqjhUqpcL3eB5cM6FrNvJmcUXhsvYjhXAwohn7PiZyFFO60tsVy8Ja6Uu5TCeONa_UDSqUQo1JlfjI2EY2CD.k2yXLO",mdrd: "Y_ZMXywOv80NxQljOVWAKx17ZdzaNHhr7DsoZhiHQoI-1741669538-1.2.1.1-M4rH_QNPyXFoiX_t4F1L3g0lvaMCKOmxNw2C8tfGz6scuWD52CCuzjOwVt.IdAEogcNwrRxGUiBuBqWuK8EKozfaqdCN4eQpH8wNvE6W6Ju5PE3MaNLlBV.J_RuUArsNv0dIowuB7dBrx_jjVO5UnlbFjyPQ14FCiGgySexK9fNG1H0RxbVpfrbc4tLHVU3EdTaa4CjB321xFPp0a9w99s65K.PyWNd54L3X0Uq1zu4l06L8Re1yI_KRFZINNUpnpvYBwOIiJfidNKcku7opTaZbO2QneSr7_S1V4NWgWdCkqnlQS0xbeb6TLMLjxKA88xcDFZYAGfYYle1YoKgNqlQAwepKRhCUuFhCFg_x9OePFDSqdj1kTC3kUG8hDNN0RptQt3Rb3yF.OMz2zZ7OVT23hbT85QNs27yzUgh1V8ptAhfpO88LMmK..weV_mO24b1RNnrhxHyg8MapY3a51dyGi78pp17WJrASXJh5lnVpdO3iexUNGOjz.l6tCVVsC_pO78szzVtLWq3AQdv2bMySu.5efBM2l9eFfcYZVJkYO4AJHnUQiy4ykdsoYbyYdrEUF96GX8N3jkyfXQNnAIkzZ_7.5C8Ju1Bwr5.CUS1AwreoDlBJSyBi63sTTT9c_KDN5SwHfIH85qlQVHyXwNJh.Ej9EkihDMxGsdqucEy8vlwQYcmZS8FpP3lkzMkpFYlXrit94e8ZyTJJMjbFNgcYti8IRWHwDwH_P8ACysIVCYKgwqtk4K37ndhsalt2KW6zvvAW1nAf6ZurntTMox.KeZnaX03mrI02n1CwpZnsYmGPdOSMSq8bbeyXIaeJSk9_BsLGnFMWHKDPjgBk725XCuiDBJ1yGKmILUJXFLY950GlMyU7hsMukbtA5Dt8QaSpkll_DJOrqCxL3WWCij0ILm9bxIkr0LPg6NkOQ7ApM2dhBhskJPd8Rbefjihn6zXLtlfk6leKCYHo21JlvqDULrPmeqMsWnGK16THLWL6s68RNNP7Xv0FXzpjUAevqiBh_aZAB8Cv6ye8fzrkm1WT1YhFU419sp_DVqQ1JaVxXJRCJWuHsyGmXyf24SYH9s9KLriFWXzb.onqvfZKr6l_FwgTqgdxINYO07KKjtSObypPH6sxeF1ShzC2KK1uUyzHVyZscn3f8x6HQYUzU8lY2zMeSEJijbp8soFeoGEv2K8yB9mZT..y7YsKsvFBa2lZzQXw51KR9ik2ftPPM17.4QVeJpaO3lgEWyHtYemDHv4uOagwLCLTfFH1TfncXTAR4uWcw7BwPF_qW3l7PTDNzPS7Xxv9K3dzJ5WD8i84oTaPuoFMncZLUeUm6huH3efGEuzAz2X2lzCQhMFDNqdxK2EIxTAHXDqbA7VMPa1RCkiroVEL0jcb9F9q_lJPbOSMKNm1.O0XjaqpmEkDWInyAubxa2PNkqm2y6ULX_i5rfXgmOOd45eZsHmXKKg0KFZYqWEa83dfUzCvobN_OtsqyPWNKg.4Oxqb9wRUS9H9THdzeG3HpUrNRjgvNw1nAiqqs6YVrbyeOzsvdLzJimQxutZ3P5f6rukqyEre7pP5Xz98w_iRH_oExIpJfAXjEltveDlvdcckIu5pjxnCgVoMujNJOE3lZlo9oqTKI3n044XBHvXhWg6g37h4DIbu574BQS1RA1zqZ8T.gQqwEe8Nf7SnJq3k.Pz08tBnu6py7vBihbcgWI7h9kVQmQqR5r_vzIN3xuIEinFKszahRYMYjHlUw3nPNQxU9N0C15oVadvq488lv2SBQbE0rwLTpsgE_hJsE.OjQvDXnqkd5yp50Qt7zBaE5p2fMX7PVT45MxYzHvgpzbnF92.MdDlf4lmeEKe5hemeWaWNoFOCuIOZk3.ysDPLME.2M_raNA_VoOoxQfHurAKZW_8jbRlwvU_cKNiMH8A3DrkLsNkhAvXilRnAHykPceLskKA4v6XENlKazMOB2Mn5dnDye9t89px8IUZ0wH3wbRnr6lJ6eA"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=91e884988a9ef93a';window._cf_chl_opt.cOgUHash = location.hash === '' && location.href.indexOf('#') !== -1 ? '#' : location.hash;window._cf_chl_opt.cOgUQuery = location.search === '' && location.href.slice(0, location.href.length - window._cf_chl_opt.cOgUHash.length).indexOf('?') !== -1 ? '?' : location.search;if (window.history && window.history.replaceState) {var ogU = location.pathname + window._cf_chl_opt.cOgUQuery + window._cf_chl_opt.cOgUHash;history.replaceState(null, null, "\/abstracts\/165591\/incidence-of-post-endoscopic-retrograde-cholangiopancreatography-biliary-ascariasis-diagnosed-on-ultrasound?__cf_chl_rt_tk=MpnZybdl4.TDsb3YOqyRna6h1ftZ0lwFdOJtLaCmS_s-1741669538-1.0.1.1-K4qo3euOaC_vM7e8arLUCIttmMb_zF5B1vfIicjzeWU" + window._cf_chl_opt.cOgUHash);cpo.onload = function() {history.replaceState(null, null, ogU);}}document.getElementsByTagName('head')[0].appendChild(cpo);}());</script></body></html>