Updates are available Correction dated 2019-05-08

Article History

Received: 21 October 2018

Accepted: 17 January 2019

First Online: 11 April 2019

Change Date: 8 May 2019

Change Type: Correction

Change Details: After publication of the original article [1], the authors have notified us that two of the collaborator first and last names have been inverted in the “PROTHOR Investigators” table.

Authors’ information

: Not applicable.

: The Istanbul University, Medical Faculty, Ethical Committee of clinical research approved the study on 08.04.2016 (File number 2016/483, study protocol version 1.9). Additionally, the institutional review board at the University Hospital Dresden, Technische Universität Dresden, Dresden, Germany, approved the study on 23.09.2016 (reference no. EK 392092016, study protocol version 1.9). The respective review boards of participating sites also approved the study. PROTHOR is designed in accordance to the principles of the Declaration of Helsinki. Written informed consent was obtained from every enrolled patient upon request by the local institutional review board.

: Not applicable.

: MRET received free airway device samples from Ambu in April 2014 and from Airtraq in March 2015 for use in another three published studies. He has no direct financial or other interests in Ambu or Airtraq (in the context of this and his studies).All other authors declare that they have no competing interests.

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