{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,17]],"date-time":"2026-08-17T15:24:07Z","timestamp":1786980247010,"version":"build-2736575974"},"reference-count":40,"publisher":"Springer Science and Business Media LLC","issue":"8","license":[{"start":{"date-parts":[[2021,5,12]],"date-time":"2021-05-12T00:00:00Z","timestamp":1620777600000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.springer.com\/tdm"},{"start":{"date-parts":[[2021,5,12]],"date-time":"2021-05-12T00:00:00Z","timestamp":1620777600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/www.springer.com\/tdm"}],"content-domain":{"domain":["link.springer.com"],"crossmark-restriction":false},"short-container-title":["Surg Endosc"],"published-print":{"date-parts":[[2021,8]]},"DOI":"10.1007\/s00464-021-08538-3","type":"journal-article","created":{"date-parts":[[2021,5,12]],"date-time":"2021-05-12T09:18:35Z","timestamp":1620811115000},"page":"4882-4889","update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":30,"title":["Ureteral navigation using a fluorescent ureteral catheter during laparoscopic colorectal surgery"],"prefix":"10.1007","volume":"35","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-7484-049X","authenticated-orcid":false,"given":"Shunjin","family":"Ryu","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Atsuko","family":"Okamoto","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Keigo","family":"Nakashima","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Keigo","family":"Hara","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kota","family":"Ishida","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ryusuke","family":"Ito","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yukio","family":"Nakabayashi","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2021,5,12]]},"reference":[{"key":"8538_CR1","doi-asserted-by":"publisher","first-page":"497","DOI":"10.1016\/0090-4295(91)80165-4","volume":"38","author":"MAST Lezina","year":"1991","unstructured":"Lezina MAST, Stoller ML (1991) Surgical ureteral injuries. Urology 38:497\u2013506","journal-title":"Urology"},{"key":"8538_CR2","doi-asserted-by":"publisher","first-page":"633","DOI":"10.3346\/jkms.2002.17.5.633","volume":"17","author":"YS Nam","year":"2002","unstructured":"Nam YS, Wexner SD (2002) Clinical value of prophylactic ureteral stent indwelling during laparoscopic colorectal surgery. J Korean Med Sci 17:633\u2013635","journal-title":"J Korean Med Sci"},{"key":"8538_CR3","doi-asserted-by":"publisher","first-page":"592","DOI":"10.1007\/BF02055385","volume":"40","author":"SW Larach","year":"1997","unstructured":"Larach SW, Patankar SK, Ferrara A, Williamson PR, Perozo SE, Lord AS (1997) Complications of laparoscopic colorectal surgery. Dis Colon Rectum 40:592\u2013596","journal-title":"Dis Colon Rectum"},{"key":"8538_CR4","first-page":"49","volume":"6","author":"F Chahin","year":"2002","unstructured":"Chahin F, Dwivedi AJ, Paramesh A, Chau W, Agrawal S, Chahin C, Kumar A, Tootla A, Tootla F, Silva YJ (2002) The implications of lighted ureteral stenting in laparoscopic colectomy. J Soc Laparoendosc Surg 6:49\u201352","journal-title":"J Soc Laparoendosc Surg"},{"key":"8538_CR5","doi-asserted-by":"publisher","first-page":"701","DOI":"10.1111\/j.1463-1318.2006.01198.x","volume":"9","author":"A Scala","year":"2007","unstructured":"Scala A, Huang A, Dowson HMP, Rockall TA (2007) Laparoscopic colorectal surgery? Results from 200 patients. Colorectal Dis 9:701\u2013705","journal-title":"Colorectal Dis"},{"key":"8538_CR6","doi-asserted-by":"publisher","first-page":"454","DOI":"10.1001\/archsurg.1983.01390040064013","volume":"118","author":"DE Fry","year":"1983","unstructured":"Fry DE, Milholen L, Harbrecht PJ (1983) Iatrogenic ureteral injury: options in management. Arch Surg 118:454\u2013457","journal-title":"Arch Surg"},{"key":"8538_CR7","doi-asserted-by":"publisher","first-page":"1817","DOI":"10.1016\/0002-9378(95)91417-X","volume":"172","author":"JA Goodno","year":"1995","unstructured":"Goodno JA, Powers TW, Harris VD (1995) Ureteral injury in gynecologic surgery: a ten-year review in a community hospital. Am J Obstet Gynecol 172:1817\u20131822","journal-title":"Am J Obstet Gynecol"},{"key":"8538_CR8","doi-asserted-by":"publisher","first-page":"267","DOI":"10.1001\/archsurg.2011.2029","volume":"147","author":"NC Palaniappa","year":"2012","unstructured":"Palaniappa NC (2012) Incidence of iatrogenic ureteral injury after laparoscopic colectomy. Arch Surg 147:267\u2013271","journal-title":"Arch Surg"},{"key":"8538_CR9","doi-asserted-by":"publisher","first-page":"513","DOI":"10.1097\/SLE.0000000000000335","volume":"26","author":"TAT Marcelissen","year":"2016","unstructured":"Marcelissen TAT, Den Hollander PP, Tuytten TRAH, Sosef MN (2016) Incidence of iatrogenic ureteral injury during open and laparoscopic colorectal surgery: a single center experience and review of the literature. Surg Laparosc Endosc Percutan Tech 26:513\u2013515","journal-title":"Surg Laparosc Endosc Percutan Tech"},{"key":"8538_CR10","doi-asserted-by":"publisher","first-page":"689","DOI":"10.1007\/s00192-008-0788-3","volume":"20","author":"MT Chou","year":"2009","unstructured":"Chou MT, Wang CJ, Lien RC (2009) Prophylactic ureteral catheterization in gynecologic surgery: a 12-year randomized trial in a community hospital. Int Urogynecol J Pelvic Floor Dysfunct 20:689\u2013693","journal-title":"Int Urogynecol J Pelvic Floor Dysfunct"},{"key":"8538_CR11","doi-asserted-by":"publisher","first-page":"1004","DOI":"10.1016\/S0090-4295(98)00382-3","volume":"52","author":"K Kuno","year":"1998","unstructured":"Kuno K, Menzin A, Kauder HH, Sison C, Gal D (1998) Prophylactic ureteral catheterization in gynecologic surgery. Urology 52:1004\u20131008","journal-title":"Urology"},{"key":"8538_CR12","doi-asserted-by":"publisher","first-page":"323","DOI":"10.1002\/jso.21943","volume":"104","author":"BE Schaafsma","year":"2011","unstructured":"Schaafsma BE, Mieog JSD, Hutteman M, Van der Vorst JR, Kuppen PJK, L\u00f6wik CWGM, Frangioni JV, Van de Velde CJH, Vahrmeijer AL (2011) The clinical use of indocyanine green as a near-infrared fluorescent contrast agent for image-guided oncologic surgery. J Surg Oncol 104:323\u2013332","journal-title":"J Surg Oncol"},{"key":"8538_CR13","doi-asserted-by":"publisher","first-page":"2221","DOI":"10.1007\/s00464-014-3432-y","volume":"28","author":"F Ris","year":"2014","unstructured":"Ris F, Hompes R, Cunningham C, Lindsey I, Guy R, Jones O, George B, Cahill RA, Mortensen NJ (2014) Near-infrared (NIR) perfusion angiography in minimally invasive colorectal surgery. Surg Endosc 28:2221\u20132226","journal-title":"Surg Endosc"},{"key":"8538_CR14","doi-asserted-by":"publisher","first-page":"3003","DOI":"10.1007\/s00464-013-2832-8","volume":"27","author":"MD Jafari","year":"2013","unstructured":"Jafari MD, Lee KH, Halabi WJ, Mills SD, Carmichael JC, Stamos MJ, Pigazzi A (2013) The use of indocyanine green fluorescence to assess anastomotic perfusion during robotic assisted laparoscopic rectal surgery. Surg Endosc 27:3003\u20133008","journal-title":"Surg Endosc"},{"key":"8538_CR15","doi-asserted-by":"publisher","first-page":"433","DOI":"10.1097\/SLE.0b013e3182601eb8","volume":"22","author":"DA Sherwinter","year":"2012","unstructured":"Sherwinter DA (2012) Transanal near-infrared imaging of colorectal anastomotic perfusion. Surg Laparosc Endosc Percutan Tech 22:433\u2013436","journal-title":"Surg Laparosc Endosc Percutan Tech"},{"key":"8538_CR16","doi-asserted-by":"publisher","first-page":"1025","DOI":"10.1007\/s00423-010-0699-x","volume":"395","author":"S Kudszus","year":"2010","unstructured":"Kudszus S, Roesel C, Schachtrupp A, H\u00f6er JJ (2010) Intraoperative laser fluorescence angiography in colorectal surgery: a noninvasive analysis to reduce the rate of anastomotic leakage. Langenbecks Arch Surg 395:1025\u20131030","journal-title":"Langenbecks Arch Surg"},{"key":"8538_CR17","doi-asserted-by":"publisher","first-page":"82","DOI":"10.1016\/j.jamcollsurg.2014.09.015","volume":"220","author":"MD Jafari","year":"2015","unstructured":"Jafari MD, Wexner SD, Martz JE, McLemore EC, Margolin DA, Sherwinter DA, Lee SW, Senagore AJ, Phelan MJ, Stamos MJ (2015) Perfusion assessment in laparoscopic left-sided\/anterior resection (PILLAR II): a multi-institutional study. J Am Coll Surg 220:82\u201392","journal-title":"J Am Coll Surg"},{"key":"8538_CR18","doi-asserted-by":"publisher","first-page":"4184","DOI":"10.1007\/s00464-017-5475-3","volume":"31","author":"T Wada","year":"2017","unstructured":"Wada T, Kawada K, Takahashi R, Yoshitomi M, Hida K, Hasegawa S, Sakai Y (2017) ICG fluorescence imaging for quantitative evaluation of colonic perfusion in laparoscopic colorectal surgery. Surg Endosc 31:4184\u20134193","journal-title":"Surg Endosc"},{"key":"8538_CR19","doi-asserted-by":"publisher","first-page":"373","DOI":"10.21873\/anticanres.13962","volume":"40","author":"S Ryu","year":"2020","unstructured":"Ryu S, Suwa K, Kitagawa T, Aizawa M, Ushigome T, Okamoto T, Eto KEN, Yanaga K (2020) Evaluation of anastomosis with ICG fluorescence method using VISERA ELITE2 during laparoscopic colorectal cancer surgery. Anticancer Res 40:373\u2013377","journal-title":"Anticancer Res"},{"key":"8538_CR20","doi-asserted-by":"publisher","first-page":"701","DOI":"10.1097\/DCR.0000000000000608","volume":"59","author":"J Watanabe","year":"2016","unstructured":"Watanabe J, Ota M, Suwa Y, Ishibe A, Masui H, Nagahori K (2016) Real-time indocyanine green fluorescence imaging-guided complete mesocolic excision in laparoscopic flexural colon cancer surgery. Dis Colon Rectum 59:701\u2013705","journal-title":"Dis Colon Rectum"},{"key":"8538_CR21","doi-asserted-by":"publisher","first-page":"3009","DOI":"10.21873\/anticanres.13433","volume":"39","author":"S Ryu","year":"2019","unstructured":"Ryu S, Suwa K, Kitagawa T, Aizawa M, Ushigome T, Okamoto T, Eto KEN, Yanaga K (2019) Real-time fluorescence vessel navigation using indocyanine green during laparoscopic colorectal cancer surgery. Anticancer Res 39:3009\u20133013","journal-title":"Anticancer Res"},{"key":"8538_CR22","doi-asserted-by":"publisher","DOI":"10.1007\/s00464-020-07634-0,May2019","author":"T Anayama","year":"2020","unstructured":"Anayama T, Sato T, Hirohashi K, Miyazaki R, Yamamoto M, Okada H, Orihashi K, Inoue K, Kobayashi M, Yoshida M, Hanazaki K (2020) Near-infrared fluorescent solid material for visualizing indwelling devices implanted for medical use. Surg Endosc. https:\/\/doi.org\/10.1007\/s00464-020-07634-0,May2019","journal-title":"Surg Endosc"},{"key":"8538_CR23","doi-asserted-by":"publisher","first-page":"821","DOI":"10.1016\/S0140-6736(09)60485-2","volume":"373","author":"P Quirke","year":"2009","unstructured":"Quirke P, Steele R, Monson J, Grieve R, Khanna S, Couture J, O\u2019Callaghan C, Myint AS, Bessell E, Thompson LC, Parmar M, Stephens RJ, Sebag-Montefiore D, MRC CR07\/NCIC-CTG CO16 Trial Investigators, NCRI Colorectal Cancer Study Group (2009) Effect of the plane of surgery achieved on local recurrence in patients with operable rectal cancer: a prospective study using data from the MRC CR07 and NCIC-CTG CO16 randomised clinical trial. Lancet 373:821\u2013828","journal-title":"Lancet"},{"key":"8538_CR24","doi-asserted-by":"publisher","first-page":"470","DOI":"10.1016\/j.ejso.2009.11.011","volume":"36","author":"M Kusters","year":"2010","unstructured":"Kusters M, Marijnen CAM, Van de Velde CJH, Rutten HJT, Lahaye MJ, Kim JH, Beets-Tan RGH, Beets GL (2010) Patterns of local recurrence in rectal cancer; a study of the Dutch TME trial. Eur J Surg Oncol 36:470\u2013476","journal-title":"Eur J Surg Oncol"},{"key":"8538_CR25","doi-asserted-by":"publisher","first-page":"303","DOI":"10.1200\/JCO.2007.12.7027","volume":"26","author":"ID Nagtegaal","year":"2008","unstructured":"Nagtegaal ID, Quirke P (2008) What is the role for the circumferential margin in the modern treatment of rectal cancer? J Clin Oncol 26:303\u2013312","journal-title":"J Clin Oncol"},{"key":"8538_CR26","doi-asserted-by":"publisher","first-page":"449","DOI":"10.1097\/00000658-200204000-00001","volume":"235","author":"KF Birbeck","year":"2002","unstructured":"Birbeck KF, Macklin CP, Tiffin NJ, Parsons W, Dixon MF, Mapstone NP, Abbott CR, Scott N, Finan PJ, Johnston D, Quirke P (2002) Rates of circumferential resection margin involvement vary between surgeons and predict outcomes in rectal cancer surgery. Ann Surg 235:449\u2013457","journal-title":"Ann Surg"},{"key":"8538_CR27","doi-asserted-by":"publisher","first-page":"3400","DOI":"10.1002\/cncr.24387","volume":"115","author":"E Garc\u00eda-Granero","year":"2009","unstructured":"Garc\u00eda-Granero E, Faiz O, Mu\u00f1oz E, Flor B, Navarro S, Faus C, Garc\u00eda-Botello SA, Lled\u00f3 S, Cervantes A (2009) Macroscopic assessment of mesorectal excision in rectal cancer. Cancer 115:3400\u20133411","journal-title":"Cancer"},{"key":"8538_CR28","doi-asserted-by":"publisher","first-page":"1179","DOI":"10.1245\/s10434-012-2722-7","volume":"20","author":"A Trakarnsanga","year":"2013","unstructured":"Trakarnsanga A, Gonen M, Shia J, Goodman KA, Nash GM, Temple LK, Guillem JG, Paty PB, Garcia-Aguilar J, Weiser MR (2013) What is the significance of the circumferential margin in locally advanced rectal cancer after neoadjuvant chemoradiotherapy? Ann Surg Oncol 20:1179\u20131184","journal-title":"Ann Surg Oncol"},{"key":"8538_CR29","doi-asserted-by":"publisher","first-page":"436.e1","DOI":"10.1016\/j.ajog.2014.05.017","volume":"211","author":"S Siddighi","year":"2014","unstructured":"Siddighi S, Yune JJ, Hardesty J (2014) Indocyanine green for intraoperative localization of ureter. Am J Obstet Gynecol 211:436.e1\u20132","journal-title":"Am J Obstet Gynecol"},{"key":"8538_CR30","doi-asserted-by":"publisher","first-page":"464","DOI":"10.1177\/1553350619827152","volume":"26","author":"P Mandovra","year":"2019","unstructured":"Mandovra P, Kalikar V, Patankar RV (2019) Real-Time visualization of ureters using indocyanine green during laparoscopic surgeries: can we make surgery safer? Surg Innov 26:464\u2013468","journal-title":"Surg Innov"},{"key":"8538_CR31","doi-asserted-by":"publisher","first-page":"4036","DOI":"10.1007\/s00464-018-6219-8","volume":"32","author":"TG Barnes","year":"2018","unstructured":"Barnes TG, Hompes R, Birks J, Mortensen NJ, Jones O, Lindsey I, Guy R, George B, Cunningham C, Yeung TM (2018) Methylene blue fluorescence of the ureter during colorectal surgery. Surg Endosc 32:4036\u20134043","journal-title":"Surg Endosc"},{"key":"8538_CR32","doi-asserted-by":"publisher","first-page":"870","DOI":"10.1089\/lap.2016.0264","volume":"26","author":"M Al-Taher","year":"2016","unstructured":"Al-Taher M, Van den Bos J, Schols RM, Bouvy ND, Stassen LPS (2016) Fluorescence ureteral visualization in human laparoscopic colorectal surgery using methylene blue. J Laparoendosc Adv Surg Tech A 26:870\u2013875","journal-title":"J Laparoendosc Adv Surg Tech A"},{"key":"8538_CR33","doi-asserted-by":"publisher","first-page":"78","DOI":"10.1016\/j.surg.2009.12.003","volume":"148","author":"A Matsui","year":"2010","unstructured":"Matsui A, Tanaka E, Choi HS, Kianzad V, Gioux S, Lomnes SJ, Frangioni JV (2010) Real-Time, near-infrared, fluorescence-guided identification of the ureters using methylene blue. Surgery 148:78\u201386","journal-title":"Surgery"},{"key":"8538_CR34","first-page":"49","volume":"6","author":"F Chahin","year":"2002","unstructured":"Chahin F, Dwivedi AJ, Paramesh A, Chau W, Agrawal S, Chahin C, Kumar A, Tootla A, Tootla F, Silva Y (2002) The implications of lighted ureteral stenting in laparoscopic colectomy. JSLS 6:49\u201352","journal-title":"JSLS"},{"key":"8538_CR35","doi-asserted-by":"publisher","first-page":"541","DOI":"10.5180\/jsgoe.26.541","volume":"26","author":"S Kaku","year":"2010","unstructured":"Kaku S, Shimizu Y, Wakinoue S, Takebayashi A, Takashima A, Tarumoto Y, Nakagawa T, Kita N, Takahashi K, Murakami T (2010) Prevention of ureteral damage by using ureteral illuminating catheter during laparoscopic surgery. Jpn J Gynecol Obstet Endosc 26:541\u2013544 (in Japanese)","journal-title":"Jpn J Gynecol Obstet Endosc"},{"key":"8538_CR36","doi-asserted-by":"publisher","first-page":"566","DOI":"10.1016\/j.ajog.2015.10.150","volume":"214","author":"Z Lee","year":"2016","unstructured":"Lee Z, Kaplan J, Giusto L, Eun D (2016) Prevention of iatrogenic ureteral injuries during robotic gynecologic surgery: a review. Am J Obstet Gynecol 214:566\u2013571","journal-title":"Am J Obstet Gynecol"},{"key":"8538_CR37","doi-asserted-by":"publisher","first-page":"328","DOI":"10.5180\/jsgoe.35.2_328","volume":"35","author":"K Uno","year":"2019","unstructured":"Uno K, Ueno T, Yamada T, Takeda T, Tano S, Suzuki T, Kishigami Y, Oguchi H (2019) Prevention of ureteral injury during laparoscopic surgery with lymph node dissection using infrared illumination system. Jpn J Gynecol Obstet Endosc 35:328\u2013332 (in Japanese)","journal-title":"Jpn J Gynecol Obstet Endosc"},{"key":"8538_CR38","doi-asserted-by":"publisher","first-page":"595","DOI":"10.1111\/codi.14552","volume":"21","author":"J Douissard","year":"2019","unstructured":"Douissard J, Meyer J, Ris F, Liot E, Morel P, Buchs NC (2019) Iatrogenic ureteral injuries and their prevention in colorectal surgery: results from a nationwide survey. Colorectal Dis 21:595\u2013602","journal-title":"Colorectal Dis"},{"key":"8538_CR39","doi-asserted-by":"publisher","first-page":"595","DOI":"10.1001\/archsurg.1982.01380290055010","volume":"117","author":"TP McGlone","year":"1982","unstructured":"McGlone TP (1982) Survival following extended operations for extracolonic invasion by colon cancer. Arch Surg 117:595\u2013599","journal-title":"Arch Surg"},{"key":"8538_CR40","doi-asserted-by":"publisher","first-page":"1","DOI":"10.1007\/s10147-019-01485-z","volume":"25","author":"Y Hashiguchi","year":"2020","unstructured":"Hashiguchi Y, Muro K, Saito Y, Ito Y, Ajioka Y, Hamaguchi T, Hasegawa K, Hotta K, Ishida H, Ishiguro M, Ishihara S, Kanemitsu Y, Kinugasa Y, Murofushi K, Nakajima TE, Oka S, Tanaka T, Taniguchi H, Tsuji A, Uehara K, Ueno H, Yamanaka T, Yamazaki K, Yoshida M, Yoshino T, Itabashi M, Sakamaki K, Sano K, Shimada Y, Tanaka S, Uetake H, Yamaguchi S, Yamaguchi N, Kobayashi H, Matsuda K, Kotake K, Sugihara K, Japanese Society for Cancer of the Colon and Rectum (2020) Japanese Society for Cancer of the Colon and Rectum (JSCCR) guidelines 2019 for the treatment of colorectal cancer. Int J Clin Oncol 25:1\u201342","journal-title":"Int J Clin Oncol"}],"container-title":["Surgical Endoscopy"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/link.springer.com\/content\/pdf\/10.1007\/s00464-021-08538-3.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/link.springer.com\/article\/10.1007\/s00464-021-08538-3\/fulltext.html","content-type":"text\/html","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/link.springer.com\/content\/pdf\/10.1007\/s00464-021-08538-3.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2021,7,7]],"date-time":"2021-07-07T14:12:45Z","timestamp":1625667165000},"score":1,"resource":{"primary":{"URL":"https:\/\/link.springer.com\/10.1007\/s00464-021-08538-3"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2021,5,12]]},"references-count":40,"journal-issue":{"issue":"8","published-print":{"date-parts":[[2021,8]]}},"alternative-id":["8538"],"URL":"https:\/\/doi.org\/10.1007\/s00464-021-08538-3","relation":{},"ISSN":["0930-2794","1432-2218"],"issn-type":[{"value":"0930-2794","type":"print"},{"value":"1432-2218","type":"electronic"}],"subject":[],"published":{"date-parts":[[2021,5,12]]},"assertion":[{"value":"4 August 2020","order":1,"name":"received","label":"Received","group":{"name":"ArticleHistory","label":"Article History"}},{"value":"30 April 2021","order":2,"name":"accepted","label":"Accepted","group":{"name":"ArticleHistory","label":"Article History"}},{"value":"12 May 2021","order":3,"name":"first_online","label":"First Online","group":{"name":"ArticleHistory","label":"Article History"}},{"order":1,"name":"Ethics","group":{"name":"EthicsHeading","label":"Declarations"}},{"value":"Shunjin Ryu, Atsuko Okamoto, Keigo Nakashima, Keigo Hara, Kota Ishida, Ryusuke Ito, Yukio Nakabayashi have no conflicts of interest or financial ties to disclose.","order":2,"name":"Ethics","group":{"name":"EthicsHeading","label":"Disclosures"}},{"value":"This study was approved by the Research Ethics Committee of the Kawaguchi Municipal Medical Center (Saitama, Japan) (Approval number: 2020\u20133).","order":3,"name":"Ethics","group":{"name":"EthicsHeading","label":"Ethical approval"}}]}}