The publisher would like to draw the reader's attention to the following errors.
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1.
An ethics approval statement was not included in the article “Application of retrievable Solitaire AB stents in the endovascular treatment of acute ischemic stroke” (2018, 1:77–81). The statement should read: The authors declare that this study was approved by the Ethics Committee of the Henan Provincial People's Hospital.
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2.
An ethics approval statement was not included in the article “Precise localization of small pulmonary nodules using Pre-VATS with Xper-CT in combination with real-time fluoroscopy-guided coil: report of 15 patients.” (2018, 1:102–105). The statement should read: The authors declare that this study was approved by the Ethics Committee of the Shanghai Zhongshan Hospital Affiliated to Fudan University.
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3.
An ethics approval statement was not included in the article “Negative pressure catheter drainage and jejunal feeding for descending necrotizing mediastinitis by interventional techniques: a retrospective study” (2018, 1:106–111). The statement should read: The authors declare that this study was approved by the Ethics Committee of the First Affiliated Hospital of Zhengzhou University.
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4.
An ethics approval statement was not included in the article “Changes in the frequency of myeloid-derived suppressor cells after transarterial chemoembolization with gelatin sponge microparticles for hepatocellular carcinoma” (2019, 2:21–26). The statement should read: The authors declare that this study was approved by the Ethics Committee of the Beijing Tsinghua Chang Gung Hospital Affiliated to Tsinghua University.
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5.
An ethics approval statement was not included in the article “Percutaneous microwave ablation combined with synchronous transarterial chemoembolization for Hepatocellular carcinoma with macrovascular invasion or extrahepatic metastases” (2019, 2:55–59). The statement should read: The authors declare that this study was approved by the Ethics Committee of the Zhongshan Hospital Affiliated to Fudan University.
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6.
An ethics approval statement was not included in the article “Efficacy of transcatheter arterial chemoembolization combined with sorafenib in inhibiting tumor angiogenesis in a rabbit VX2 liver cancer model” (2020, 3:27–33). The statement should read: The authors declare that this study was approved by the Ethics Committee of the First Affiliated Hospital of Xi'an Jiaotong University.
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7.
An ethics approval statement was not included in the article “Safety and efficacy of the SeparGate™ balloon-guiding catheter in neurointerventional surgery: Study protocol of a prospective multicenter single-arm clinical trial” (2020, 3:93–97). The statement should read: The authors declare that this study was approved by the Ethics Committee of the Henan Provincial People's Hospital.
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8.
The ethics approval and informed consent statements were not included in the article “Transradial versus transfemoral approach for cerebral angiography: A prospective comparison” (2019, 2:31–34). The statements should read: The authors declare that this study was approved by the Ethics Committee of the Henan Provincial People's Hospital and written informed consent was obtained from all individual patients included in the study.
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9.
The ethics approval and informed consent statements were not included in the article “Safety and efficacy of hepatic arterial infusion chemotherapy with raltitrexed and oxaliplatin post-transarterial chemoembolization for unresectable hepatocellular carcinoma” (2019, 2:91–96). The statements should read: The authors declare that this study was approved by the Ethics Committee of the Peking University Cancer Hospital and written informed consent was obtained from all individual patients included in the study.
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10.
The ethics approval and informed consent statements were not included in the article “The application of abdominal aortic balloon occlusion followed by uterine artery embolization in the treatment of pernicious placenta previa complicated with placenta accreta during cesarean section” (2019, 2:113–117). The statements should read: The authors declare that this study was approved by the Ethics Committee of the First Affiliated Hospital of Zhengzhou University and written informed consent was obtained from all individual patients included in the study.
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11.
The ethics approval and informed consent statements were not included in the article “Treatment of cavernous sinus dural arteriovenous fistula using different surgical approaches: Analysis of 32 consecutive cases” (2019, 2:118–122). The statements should read: The authors declare that this study was approved by the Ethics Committee of the Henan Provincial People's Hospital and written informed consent was obtained from all individual patients included in the study.
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12.
The ethics approval and informed consent statements were not included in the article “Strategies for the diagnosis and treatment of the iliac vein compression syndrome” (2019, 2:123–127). The statements should read: The authors declare that this study was approved by the Ethics Committee of the Southeast University Hospital and written informed consent was obtained from all individual patients included in the study.
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13.
The ethics approval and informed consent statements were not included in the article “Nursing care of 22 patients with complex intracranial aneurysms treated with flow-diverting stents: A retrospective study” (2019, 2:128–130). The statements should read: The authors declare that this study was approved by the Ethics Committee of the Henan Provincial People's Hospital and written informed consent was obtained from all individual patients included in the study.
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14.
The ethics approval and informed consent statements were not included in the article “Thoracic endovascular aortic repair with left subclavian artery reconstruction for blunt traumatic aortic injury in elderly patients” (2019, 2:150–153). The statements should read: The authors declare that this study was approved by the Ethics Committee of the Dazhou Central Hospital and written informed consent was obtained from all individual patients included in the study.
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15.
The ethics approval and informed consent statements were not included in the article “Midterm results of periprosthetic coiling embolization in high-risk patients” (2019, 2:160–163). The statements should read: The authors declare that this study was approved by the Ethics Committee of the Dazhou Central Hospital and written informed consent was obtained from all individual patients included in the study.
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16.
The ethics approval and informed consent statements were not included in the article “Long-term follow-up of abdominal aortic balloon occlusion for the treatment of pernicious placenta previa with placenta accreta” (2020, 3:34–36). The statements should read: The authors declare that this study was approved by the Ethics Committee of the First Affiliated Hospital of Zhengzhou University and written informed consent was obtained from all individual patients included in the study.
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17.
The ethics approval and informed consent statements were not included in the article “Application of ultrasound-guided balloon occlusion in cesarean section in 130 cases of sinister placenta previa” (2020, 3:41–44). The statements should read: The authors declare that this study was approved by the Ethics Committee of the No.1 People's Hospital of Qujing City and written informed consent was obtained from all individual patients included in the study.
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18.
The ethics approval and informed consent statements were not included in the article “Computed tomography-guided radiofrequency ablation of the retained iodized oil after simultaneous combination with transarterial embolization in small recurrent or residual hepatocellular carcinoma” (2020, 3:49–54). The statements should read: The authors declare that this study was approved by the Ethics Committee of the Sun Yat-sen University Cancer Center and written informed consent was obtained from all individual patients included in the study.