Zhang et al. BMC Pulm Med (2020) 20:322 https://doi.org/10.1186/s12890-020-01365-7

RETRACTION NOTE Open Access Retraction Note: Bronchial blocker versus double‑lumen endobronchial tube in minimally invasive cardiac surgery Chuncheng Zhang1, Jing Yue1, Mingyue Li1, Wei Jiang1, Yu Pan2, Zhimin Song1, Cailian Shi1, Weixuan Fan3 and Zhenxiang Pan1*

Retraction Note: BMC Pulm Med 19, 207 (2019) Reference 1. Zhang C, Yue J, Li M, et al. Bronchial blocker versus double-lumen endo- https://doi.org/10.1186/s1289​ 0-019-0956​ bronchial tube in minimally invasive cardiac surgery. BMC Pulm Med. Te Editor has retracted this article [1] because the 2019;19:207. https​://doi.org/10.1186/s1289​0-019-0956-x. 2. Chinese Clinical Trial Register [Internet]. Chengdu (Sichuan): Ministry of authors have been unable to provide documents confrm- Health (). 2007 Jun 27 - Identifer ChiCTR1900024250, Bronchial ing that ethics approval was obtained in advance of the blocker versus double-lumen endobronchial tube in minimally invasive study. Additionally, discrepancies in study design and cardiac surgery; 2019 July 02 [cited 2020 October 19]; [1 page]. Available from: http://www.chict​r.org.cn/showp​rojen​.aspx?proj 38904​ recruitment dates were noted between the trial regis- = try [2] and the article. Publisher’s Note Authors Chuncheng Zhang, Jing Yue, Mingyue Li, Wei Springer Nature remains neutral with regard to jurisdictional claims in pub- Jiang, Yu Pan, Zhimin Song, Cailian Shi, Weixuan Fan lished maps and institutional afliations. and Zhenxiang Pan all agree to this retraction.

Author details 1 Department of Anesthesiology, The Second Hospital of University, No.218 Ziqiang Street, Nanguan , 130041, Jilin Province, China. 2 Yanbian University, Yanbian 130000, Jilin province, China. 3 Depart- ment of Intensive Care Unit, The Second Hospital of Jilin University, Chang- chun 130041, Jilin province, China.

The original article can be found online at https​://doi.org/10.1186/s1289​ 0-019-0956. *Correspondence: [email protected] 1 Department of Anesthesiology, The Second Hospital of Jilin University, No.218 Ziqiang Street, Nanguan District, Changchun 130041, Jilin Province, China Full list of author information is available at the end of the article

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