Retraction Retraction dated 2022-07-21

Article History

Received: 30 November 2020

Accepted: 26 April 2021

First Online: 8 May 2021

Change Date: 21 July 2022

Change Type: Correction

Change Details: This article has been retracted. Please see the Retraction Notice for more detail:

Change Details: https://doi.org/10.1186/s12871-022-01759-6

Declarations

:

: This study was approved by the Ethics Committee of Ain Shams University (approval number FMASU R 42 / 2019), and the protocol was registered on (ID: NCT04083677), with initial registration done on September 6, 2019. All procedures performed in this study involving human participants were in accordance with the Ethical Standards of the Institutional Ethics Committee and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards. All patients (or their relatives) signed written informed consent before surgery.

: Not applicable.

: The authors declare that they have no competing interests.