Al Menabbawy, Ahmed
Refaee, Ehab El
Elwy, Reem
Salem, Amany A.
Lehmann, Sebastian
Vollmer, Marcus
Matthes, Marc
Fleck, Steffen
Baldauf, Jörg
Schroeder, Henry W. S.
Funding for this research was provided by:
Universitätsmedizin Greifswald
Article History
Received: 25 November 2021
Accepted: 12 January 2022
First Online: 1 February 2022
Declarations
:
: All procedures performed in this study involving human participants were in accordance with the ethical standards of the local institutional research committee (Ethical committee of the University Medicine Greifswald) and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. Ethical committee approval number BB 101/16.
: Although no data in this study could lead to public identification of the patients, all the participating patients signed written consents agreeing with publication of their data.
: The authors declare no competing interests. We have only to mention that Henry W. S. Schroeder was a consultant to Karl Storz SE & Co. KG, Tuttlingen, Germany.