Hölscher, Miriam
Gräf, Charlotte
Stickelmann, Anna-Lena
Stickeler, Elmar
Najjari, Laila
Funding for this research was provided by:
RWTH Aachen University
Article History
Received: 16 February 2021
Accepted: 31 May 2021
First Online: 18 June 2021
Declarations
:
: Ethics approval was given by the local ethics commission of University Hospital RWTH Aachen (Reference number EK085/11). A written informed consent to participate was given by every patient in this study.
: Every patient gave written informed consent for publication of ultrasound images.
: The authors declare that they have no competing interests.