{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,15]],"date-time":"2026-08-15T10:42:28Z","timestamp":1786790548420,"version":"build-2736575974"},"reference-count":40,"publisher":"Springer Science and Business Media LLC","issue":"12","license":[{"start":{"date-parts":[[2020,4,25]],"date-time":"2020-04-25T00:00:00Z","timestamp":1587772800000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.springer.com\/tdm"},{"start":{"date-parts":[[2020,4,25]],"date-time":"2020-04-25T00:00:00Z","timestamp":1587772800000},"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":["Arch Orthop Trauma Surg"],"published-print":{"date-parts":[[2020,12]]},"DOI":"10.1007\/s00402-020-03449-9","type":"journal-article","created":{"date-parts":[[2020,4,25]],"date-time":"2020-04-25T06:02:35Z","timestamp":1587794555000},"page":"1957-1964","update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":38,"title":["Cementation: for better or worse? Interim results of a multi-centre cohort study using a fenestrated spiral blade cephalomedullary device for pertrochanteric fractures in the elderly"],"prefix":"10.1007","volume":"140","author":[{"given":"Dennis K. H.","family":"Yee","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Will","family":"Lau","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kwok Leung","family":"Tiu","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Frankie","family":"Leung","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Evan","family":"Fang","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jon Paolo S.","family":"Pineda","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Christian","family":"Fang","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2020,4,25]]},"reference":[{"issue":"3","key":"3449_CR1","doi-asserted-by":"publisher","first-page":"364","DOI":"10.1046\/j.1532-5415.2003.51110.x","volume":"51","author":"RS Braithwaite","year":"2003","unstructured":"Braithwaite RS, Col NF, Wong JB (2003) Estimating hip fracture morbidity, mortality and costs. J Am Geriatr Soc 51(3):364\u2013370. https:\/\/doi.org\/10.1046\/j.1532-5415.2003.51110.x","journal-title":"J Am Geriatr Soc"},{"issue":"1","key":"3449_CR2","doi-asserted-by":"publisher","first-page":"15","DOI":"10.4103\/0019-5413.73656","volume":"45","author":"DK Dhanwal","year":"2011","unstructured":"Dhanwal DK, Dennison EM, Harvey NC, Cooper C (2011) Epidemiology of hip fracture: worldwide geographic variation. Indian J Orthop 45(1):15\u201322. https:\/\/doi.org\/10.4103\/0019-5413.73656","journal-title":"Indian J Orthop"},{"issue":"3","key":"3449_CR3","doi-asserted-by":"publisher","first-page":"351","DOI":"10.1007\/s00402-017-2863-z","volume":"138","author":"L Murena","year":"2018","unstructured":"Murena L, Moretti A, Meo F, Saggioro E, Barbati G, Ratti C, Canton G (2018) Predictors of cut-out after cephalomedullary nail fixation of pertrochanteric fractures: a retrospective study of 813 patients. Arch Orthop Trauma Surg 138(3):351\u2013359. https:\/\/doi.org\/10.1007\/s00402-017-2863-z","journal-title":"Arch Orthop Trauma Surg"},{"key":"3449_CR4","doi-asserted-by":"publisher","first-page":"1","DOI":"10.1186\/1471-2474-14-1","volume":"14","author":"AJ Bojan","year":"2013","unstructured":"Bojan AJ, Beimel C, Taglang G, Collin D, Ekholm C, J\u00f6nsson A (2013) Critical factors in cut-out complication after Gamma Nail treatment of proximal femoral fractures. BMC Musculoskelet Disord 14:1. https:\/\/doi.org\/10.1186\/1471-2474-14-1","journal-title":"BMC Musculoskelet Disord"},{"issue":"5","key":"3449_CR5","doi-asserted-by":"publisher","first-page":"623","DOI":"10.1007\/s00402-016-2410-3","volume":"136","author":"A Turgut","year":"2016","unstructured":"Turgut A, Kalenderer O, Karapinar L, Kumbaraci M, Akkan HA, Agus H (2016) Which factor is most important for occurrence of cutout complications in patients treated with proximal femoral nail antirotation? Retrospective analysis of 298 patients. Arch Orthop Trauma Surg 136(5):623\u2013630. https:\/\/doi.org\/10.1007\/s00402-016-2410-3","journal-title":"Arch Orthop Trauma Surg"},{"issue":"8","key":"3449_CR6","doi-asserted-by":"publisher","first-page":"e102","DOI":"10.1097\/BOT.0b013e31822c53c1","volume":"26","author":"HC Frei","year":"2012","unstructured":"Frei HC, Hotz T, Cadosch D, Rudin M, Kach K (2012) Central head perforation, or \u201ccut through\u201d, caused by the helical blade of the proximal femoral nail antirotation. J Orthop Trauma 26(8):e102\u2013107. https:\/\/doi.org\/10.1097\/BOT.0b013e31822c53c1","journal-title":"J Orthop Trauma"},{"issue":"12","key":"3449_CR7","doi-asserted-by":"publisher","first-page":"538","DOI":"10.1097\/bot.0000000000000359","volume":"29","author":"MJ Chehade","year":"2015","unstructured":"Chehade MJ, Carbone T, Awwad D, Taylor A, Wildenauer C, Ramasamy B, McGee M (2015) Influence of fracture stability on early patient mortality and reoperation after pertrochanteric and intertrochanteric hip fractures. J Orthop Trauma 29(12):538\u2013543. https:\/\/doi.org\/10.1097\/bot.0000000000000359","journal-title":"J Orthop Trauma"},{"issue":"3","key":"3449_CR8","doi-asserted-by":"publisher","first-page":"483","DOI":"10.2106\/jbjs.D.01796","volume":"87","author":"CG Moran","year":"2005","unstructured":"Moran CG, Wenn RT, Sikand M, Taylor AM (2005) Early mortality after hip fracture: is delay before surgery important? J Bone Joint Surg Am 87(3):483\u2013489. https:\/\/doi.org\/10.2106\/jbjs.D.01796","journal-title":"J Bone Joint Surg Am"},{"issue":"5","key":"3449_CR9","doi-asserted-by":"publisher","first-page":"506","DOI":"10.1016\/j.clinbiomech.2004.01.014","volume":"19","author":"PF Heini","year":"2004","unstructured":"Heini PF, Franz T, Fankhauser C, Gasser B, Ganz R (2004) Femoroplasty-augmentation of mechanical properties in the osteoporotic proximal femur: a biomechanical investigation of PMMA reinforcement in cadaver bones. Clin Biomech (Bristol, Avon) 19(5):506\u2013512. https:\/\/doi.org\/10.1016\/j.clinbiomech.2004.01.014","journal-title":"Clin Biomech (Bristol, Avon)"},{"issue":"1","key":"3449_CR10","doi-asserted-by":"publisher","first-page":"45","DOI":"10.1016\/j.clinbiomech.2007.08.014","volume":"23","author":"KK Stoffel","year":"2008","unstructured":"Stoffel KK, Leys T, Damen N, Nicholls RL, Kuster MS (2008) A new technique for cement augmentation of the sliding hip screw in proximal femur fractures. Clin Biomech (Bristol, Avon) 23(1):45\u201351. https:\/\/doi.org\/10.1016\/j.clinbiomech.2007.08.014","journal-title":"Clin Biomech (Bristol, Avon)"},{"issue":"3","key":"3449_CR11","doi-asserted-by":"publisher","first-page":"294","DOI":"10.1302\/0301-620x.91b3.21273","volume":"91","author":"T Lindner","year":"2009","unstructured":"Lindner T, Kanakaris NK, Marx B, Cockbain A, Kontakis G, Giannoudis PV (2009) Fractures of the hip and osteoporosis: the role of bone substitutes. J Bone Joint Surg Br 91(3):294\u2013303. https:\/\/doi.org\/10.1302\/0301-620x.91b3.21273","journal-title":"J Bone Joint Surg Br"},{"issue":"7","key":"3449_CR12","doi-asserted-by":"publisher","first-page":"1058","DOI":"10.2106\/00004623-199507000-00012","volume":"77","author":"MR Baumgaertner","year":"1995","unstructured":"Baumgaertner MR, Curtin SL, Lindskog DM, Keggi JM (1995) The value of the tip-apex distance in predicting failure of fixation of peritrochanteric fractures of the hip. J Bone Joint Surg Am 77(7):1058\u20131064. https:\/\/doi.org\/10.2106\/00004623-199507000-00012","journal-title":"J Bone Joint Surg Am"},{"issue":"5","key":"3449_CR13","doi-asserted-by":"publisher","first-page":"719","DOI":"10.1007\/s00264-009-0837-7","volume":"34","author":"JA Geller","year":"2010","unstructured":"Geller JA, Saifi C, Morrison TA, Macaulay W (2010) Tip-apex distance of intramedullary devices as a predictor of cut-out failure in the treatment of peritrochanteric elderly hip fractures. Int Orthop 34(5):719\u2013722. https:\/\/doi.org\/10.1007\/s00264-009-0837-7","journal-title":"Int Orthop"},{"key":"3449_CR14","doi-asserted-by":"publisher","first-page":"1399","DOI":"10.2106\/00004623-195941080-00003","volume":"41","author":"M Cleveland","year":"1959","unstructured":"Cleveland M, Bosworth DM, Thompson FR, Wilson HJ Jr, Ishizuka T (1959) A ten-year analysis of intertrochanteric fractures of the femur. J Bone Jt Surg Am 41:1399\u20131408","journal-title":"J Bone Jt Surg Am"},{"issue":"1","key":"3449_CR15","doi-asserted-by":"publisher","first-page":"26","DOI":"10.1302\/0301-620X.72B1.2298790","volume":"72","author":"TR Davis","year":"1990","unstructured":"Davis TR, Sher JL, Horsman A, Simpson M, Porter BB, Checketts RG (1990) Intertrochanteric femoral fractures. Mechanical failure after internal fixation. J Bone Jt Surg Br 72(1):26\u201331","journal-title":"J Bone Jt Surg Br"},{"issue":"5","key":"3449_CR16","doi-asserted-by":"publisher","first-page":"313","DOI":"10.1016\/0020-1383(93)90053-9","volume":"24","author":"MJ Parker","year":"1993","unstructured":"Parker MJ (1993) Valgus reduction of trochanteric fractures. Injury 24(5):313\u2013316. https:\/\/doi.org\/10.1016\/0020-1383(93)90053-9","journal-title":"Injury"},{"issue":"2","key":"3449_CR17","doi-asserted-by":"publisher","first-page":"98","DOI":"10.1016\/0020-1383(89)90151-4","volume":"20","author":"CC Mainds","year":"1989","unstructured":"Mainds CC, Newman RJ (1989) Implant failures in patients with proximal fractures of the femur treated with a sliding screw device. Injury 20(2):98\u2013100. https:\/\/doi.org\/10.1016\/0020-1383(89)90151-4","journal-title":"Injury"},{"issue":"6","key":"3449_CR18","doi-asserted-by":"publisher","first-page":"360","DOI":"10.1007\/s002640100287","volume":"25","author":"WY Kim","year":"2001","unstructured":"Kim WY, Han CH, Park JI, Kim JY (2001) Failure of intertrochanteric fracture fixation with a dynamic hip screw in relation to pre-operative fracture stability and osteoporosis. Int Orthop 25(6):360\u2013362. https:\/\/doi.org\/10.1007\/s002640100287","journal-title":"Int Orthop"},{"key":"3449_CR19","unstructured":"Stoffel KK, Lim T, Billik B (2006) An analysis of the predictive factors of failure of the sliding hip screw fixation of fractures of the proximal femur. In: MOA-APOA Trauma Section Combined Meeting. Kuala Lumpur"},{"issue":"5","key":"3449_CR20","doi-asserted-by":"publisher","first-page":"616","DOI":"10.1302\/0301-620x.93b5.25539","volume":"93","author":"F O'Neill","year":"2011","unstructured":"O'Neill F, Condon F, McGloughlin T, Lenehan B, Coffey JC, Walsh M (2011) Dynamic hip screw versus DHS blade: a biomechanical comparison of the fixation achieved by each implant in bone. J Bone Jt Surg Br 93(5):616\u2013621. https:\/\/doi.org\/10.1302\/0301-620x.93b5.25539","journal-title":"J Bone Jt Surg Br"},{"issue":"4","key":"3449_CR21","doi-asserted-by":"publisher","first-page":"792","DOI":"10.2106\/jbjs.I.00508","volume":"92","author":"TM Barton","year":"2010","unstructured":"Barton TM, Gleeson R, Topliss C, Greenwood R, Harries WJ, Chesser TJ (2010) A comparison of the long gamma nail with the sliding hip screw for the treatment of AO\/OTA 31-A2 fractures of the proximal part of the femur: a prospective randomized trial. J Bone Jt Surg Am 92(4):792\u2013798. https:\/\/doi.org\/10.2106\/jbjs.I.00508","journal-title":"J Bone Jt Surg Am"},{"issue":"4","key":"3449_CR22","doi-asserted-by":"publisher","first-page":"428","DOI":"10.1016\/j.injury.2008.10.014","volume":"40","author":"P Mereddy","year":"2009","unstructured":"Mereddy P, Kamath S, Ramakrishnan M, Malik H, Donnachie N (2009) The AO\/ASIF proximal femoral nail antirotation (PFNA): a new design for the treatment of unstable proximal femoral fractures. Injury 40(4):428\u2013432. https:\/\/doi.org\/10.1016\/j.injury.2008.10.014","journal-title":"Injury"},{"issue":"8","key":"3449_CR23","doi-asserted-by":"publisher","first-page":"932","DOI":"10.1016\/j.injury.2008.02.005","volume":"39","author":"RK Simmermacher","year":"2008","unstructured":"Simmermacher RK, Ljungqvist J, Bail H, Hockertz T, Vochteloo AJ, Ochs U, Werken C (2008) The new proximal femoral nail antirotation (PFNA) in daily practice: results of a multicentre clinical study. Injury 39(8):932\u2013939. https:\/\/doi.org\/10.1016\/j.injury.2008.02.005","journal-title":"Injury"},{"key":"3449_CR24","first-page":"41","volume":"138","author":"G Muhr","year":"1979","unstructured":"Muhr G, Tscherne H, Thomas R (1979) Comminuted trochanteric femoral fractures in geriatric patients: the results of 231 cases treated with internal fixation and acrylic cement. Clin Orthop Relat Res 138:41\u201344","journal-title":"Clin Orthop Relat Res"},{"issue":"5","key":"3449_CR25","doi-asserted-by":"publisher","first-page":"302","DOI":"10.1097\/00005131-200205000-00003","volume":"16","author":"F Eriksson","year":"2002","unstructured":"Eriksson F, Mattsson P, Larsson S (2002) The effect of augmentation with resorbable or conventional bone cement on the holding strength for femoral neck fracture devices. J Orthop Trauma 16(5):302\u2013310. https:\/\/doi.org\/10.1097\/00005131-200205000-00003","journal-title":"J Orthop Trauma"},{"issue":"12","key":"3449_CR26","doi-asserted-by":"publisher","first-page":"2230","DOI":"10.1002\/jor.20299","volume":"24","author":"P von der Linden","year":"2006","unstructured":"von der Linden P, Gisep A, Boner V, Windolf M, Appelt A, Suhm N (2006) Biomechanical evaluation of a new augmentation method for enhanced screw fixation in osteoporotic proximal femoral fractures. J Orthop Res 24(12):2230\u20132237. https:\/\/doi.org\/10.1002\/jor.20299","journal-title":"J Orthop Res"},{"issue":"11","key":"3449_CR27","doi-asserted-by":"publisher","first-page":"1322","DOI":"10.1016\/j.injury.2011.04.010","volume":"42","author":"S Erhart","year":"2011","unstructured":"Erhart S, Schmoelz W, Blauth M, Lenich A (2011) Biomechanical effect of bone cement augmentation on rotational stability and pull-out strength of the Proximal Femur Nail Antirotation. Injury 42(11):1322\u20131327. https:\/\/doi.org\/10.1016\/j.injury.2011.04.010","journal-title":"Injury"},{"issue":"2","key":"3449_CR28","doi-asserted-by":"publisher","first-page":"E54","DOI":"10.1097\/TA.0b013e31821852ed","volume":"72","author":"A Sermon","year":"2012","unstructured":"Sermon A, Boner V, Boger A, Schwieger K, Boonen S, Broos PL, Richards RG, Windolf M (2012) Potential of polymethylmethacrylate cement-augmented helical proximal femoral nail antirotation blades to improve implant stability\u2014a biomechanical investigation in human cadaveric femoral heads. J Trauma Acute Care Surg 72(2):E54\u201359","journal-title":"J Trauma Acute Care Surg"},{"issue":"1","key":"3449_CR29","doi-asserted-by":"publisher","first-page":"71","DOI":"10.1016\/j.clinbiomech.2011.07.006","volume":"27","author":"A Sermon","year":"2012","unstructured":"Sermon A, Boner V, Schwieger K, Boger A, Boonen S, Broos P, Richards G, Windolf M (2012) Biomechanical evaluation of bone-cement augmented Proximal Femoral Nail Antirotation blades in a polyurethane foam model with low density. Clin Biomech (Bristol, Avon) 27(1):71\u201376. https:\/\/doi.org\/10.1016\/j.clinbiomech.2011.07.006","journal-title":"Clin Biomech (Bristol, Avon)"},{"issue":"12","key":"3449_CR30","doi-asserted-by":"publisher","first-page":"1484","DOI":"10.1016\/j.injury.2011.07.010","volume":"42","author":"C Kammerlander","year":"2011","unstructured":"Kammerlander C, Gebhard F, Meier C, Lenich A, Linhart W, Clasbrummel B, Neubauer-Gartzke T, Garcia-Alonso M, Pavelka T, Blauth M (2011) Standardised cement augmentation of the PFNA using a perforated blade: a new technique and preliminary clinical results. A prospective multicentre trial. Injury 42(12):1484\u20131490. https:\/\/doi.org\/10.1016\/j.injury.2011.07.010","journal-title":"Injury"},{"issue":"3","key":"3449_CR31","doi-asserted-by":"publisher","first-page":"343","DOI":"10.1007\/s00402-013-1902-7","volume":"134","author":"C Kammerlander","year":"2014","unstructured":"Kammerlander C, Doshi H, Gebhard F, Scola A, Meier C, Linhart W, Garcia-Alonso M, Nistal J, Blauth M (2014) Long-term results of the augmented PFNA: a prospective multicenter trial. Arch Orthop Trauma Surg 134(3):343\u2013349. https:\/\/doi.org\/10.1007\/s00402-013-1902-7","journal-title":"Arch Orthop Trauma Surg"},{"issue":"8","key":"3449_CR32","doi-asserted-by":"publisher","first-page":"1436","DOI":"10.1016\/j.injury.2018.04.022","volume":"49","author":"C Kammerlander","year":"2018","unstructured":"Kammerlander C, Hem ES, Klopfer T, Gebhard F, Sermon A, Dietrich M, Bach O, Weil Y, Babst R, Blauth M (2018) Cement augmentation of the Proximal Femoral Nail Antirotation (PFNA)\u2014a multicentre randomized controlled trial. Injury 49(8):1436\u20131444. https:\/\/doi.org\/10.1016\/j.injury.2018.04.022","journal-title":"Injury"},{"issue":"23","key":"3449_CR33","doi-asserted-by":"publisher","first-page":"e166","DOI":"10.1097\/md.0000000000000166","volume":"93","author":"D W\u00e4hnert","year":"2014","unstructured":"W\u00e4hnert D, Hofmann-Fliri L, Richards RG, Gueorguiev B, Raschke MJ, Windolf M (2014) Implant augmentation: adding bone cement to improve the treatment of osteoporotic distal femur fractures: a biomechanical study using human cadaver bones. Medicine (Baltimore) 93(23):e166. https:\/\/doi.org\/10.1097\/md.0000000000000166","journal-title":"Medicine (Baltimore)"},{"issue":"3","key":"3449_CR34","doi-asserted-by":"publisher","first-page":"490","DOI":"10.1002\/jbm.1263","volume":"59","author":"T Hisatome","year":"2002","unstructured":"Hisatome T, Yasunaga Y, Ikuta Y, Fujimoto Y (2002) Effects on articular cartilage of subchondral replacement with polymethylmethacrylate and calcium phosphate cement. J Biomed Mater Res 59(3):490\u2013498. https:\/\/doi.org\/10.1002\/jbm.1263","journal-title":"J Biomed Mater Res"},{"issue":"11","key":"3449_CR35","doi-asserted-by":"publisher","first-page":"1432","DOI":"10.1002\/jor.20905","volume":"27","author":"H Chen","year":"2009","unstructured":"Chen H, Sun J, Hoemann CD, Lascau-Coman V, Ouyang W, McKee MD, Shive MS, Buschmann MD (2009) Drilling and microfracture lead to different bone structure and necrosis during bone-marrow stimulation for cartilage repair. J Orthop Res 27(11):1432\u20131438. https:\/\/doi.org\/10.1002\/jor.20905","journal-title":"J Orthop Res"},{"key":"3449_CR36","first-page":"34","volume":"213","author":"EL Radin","year":"1986","unstructured":"Radin EL, Rose RM (1986) Role of subchondral bone in the initiation and progression of cartilage damage. Clin Orthop Relat Res 213:34\u201340","journal-title":"Clin Orthop Relat Res"},{"issue":"3","key":"3449_CR37","doi-asserted-by":"publisher","first-page":"e414","DOI":"10.1097\/md.0000000000000414","volume":"94","author":"M Goetzen","year":"2015","unstructured":"Goetzen M, Hofmann-Fliri L, Arens D, Zeiter S, Stadelmann V, Nehrbass D, Richards RG, Blauth M (2015) Does metaphyseal cement augmentation in fracture management influence the adjacent subchondral bone and joint cartilage?: an in vivo study in sheep stifle joints. Medicine (Baltimore) 94(3):e414. https:\/\/doi.org\/10.1097\/md.0000000000000414","journal-title":"Medicine (Baltimore)"},{"key":"3449_CR38","first-page":"110","volume":"101","author":"GS Laros","year":"1974","unstructured":"Laros GS, Moore JF (1974) Complications of fixation in intertrochanteric fractures. Clin Orthop Relat Res 101:110\u2013119","journal-title":"Clin Orthop Relat Res"},{"key":"3449_CR39","doi-asserted-by":"crossref","first-page":"130","DOI":"10.1097\/00003086-199010000-00019","volume":"259","author":"S Larsson","year":"1990","unstructured":"Larsson S, Friberg S, Hansson LI (1990) Trochanteric fractures. Influence of reduction and implant position on impaction and complications. Clin Orthop Relat Res 259:130\u2013139","journal-title":"Clin Orthop Relat Res"},{"key":"3449_CR40","first-page":"65","volume":"175","author":"JP Rao","year":"1983","unstructured":"Rao JP, Banzon MT, Weiss AB, Rayhack J (1983) Treatment of unstable intertrochanteric fractures with anatomic reduction and compression hip screw fixation. Clin Orthop Relat Res 175:65\u201371","journal-title":"Clin Orthop Relat Res"}],"container-title":["Archives of Orthopaedic and Trauma Surgery"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/link.springer.com\/content\/pdf\/10.1007\/s00402-020-03449-9.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/link.springer.com\/article\/10.1007\/s00402-020-03449-9\/fulltext.html","content-type":"text\/html","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/link.springer.com\/content\/pdf\/10.1007\/s00402-020-03449-9.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2022,10,22]],"date-time":"2022-10-22T08:09:22Z","timestamp":1666426162000},"score":1,"resource":{"primary":{"URL":"https:\/\/link.springer.com\/10.1007\/s00402-020-03449-9"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2020,4,25]]},"references-count":40,"journal-issue":{"issue":"12","published-print":{"date-parts":[[2020,12]]}},"alternative-id":["3449"],"URL":"https:\/\/doi.org\/10.1007\/s00402-020-03449-9","relation":{},"ISSN":["0936-8051","1434-3916"],"issn-type":[{"value":"0936-8051","type":"print"},{"value":"1434-3916","type":"electronic"}],"subject":[],"published":{"date-parts":[[2020,4,25]]},"assertion":[{"value":"15 January 2020","order":1,"name":"received","label":"Received","group":{"name":"ArticleHistory","label":"Article History"}},{"value":"25 April 2020","order":2,"name":"first_online","label":"First Online","group":{"name":"ArticleHistory","label":"Article History"}},{"order":1,"name":"Ethics","group":{"name":"EthicsHeading","label":"Compliance with ethical standards"}},{"value":"The authors declare no conflict of interest.","order":2,"name":"Ethics","group":{"name":"EthicsHeading","label":"Conflict of interest"}},{"value":"Ethical approval is not required for secondary data according to regional guidelines as set out by the Hospital Authority Head Office Steering Committee on Research Ethics ().","order":3,"name":"Ethics","group":{"name":"EthicsHeading","label":"Ethics approval"}}]}}