Retraction Note: BMC Pulm Med 19, 207 (2019) https://doi.org/10.1186/s12890-019-0956-x
The Editor has retracted this article [1] because the authors have been unable to provide documents confirming that ethics approval was obtained in advance of the study. Additionally, discrepancies in study design and recruitment dates were noted between the trial registry [2] and the article.
Authors Chuncheng Zhang, Jing Yue, Mingyue Li, Wei Jiang, Yu Pan, Zhimin Song, Cailian Shi, Weixuan Fan and Zhenxiang Pan all agree to this retraction.
Reference
Zhang C, Yue J, Li M, et al. Bronchial blocker versus double-lumen endobronchial tube in minimally invasive cardiac surgery. BMC Pulm Med. 2019;19:207. https://doi.org/10.1186/s12890-019-0956-x.
Chinese Clinical Trial Register [Internet]. Chengdu (Sichuan): Ministry of Health (China). 2007 Jun 27 - Identifier ChiCTR1900024250, Bronchial blocker versus double-lumen endobronchial tube in minimally invasive cardiac surgery; 2019 July 02 [cited 2020 October 19]; [1 page]. Available from: http://www.chictr.org.cn/showprojen.aspx?proj=38904
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Zhang , ., Yue , ., Li , . et al. Retraction Note: Bronchial blocker versus double-lumen endobronchial tube in minimally invasive cardiac surgery. BMC Pulm Med 20, 322 (2020). https://doi.org/10.1186/s12890-020-01365-7
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DOI: https://doi.org/10.1186/s12890-020-01365-7