Schöller, Dorit
Hölting, Marieke
Stefanescu, Diana
Burow, Helen
Schönfisch, Birgitt http://orcid.org/0000-0002-7635-5997
Rall, Katharina http://orcid.org/0000-0003-4546-9438
Taran, Florin-Andrei http://orcid.org/0000-0001-9167-047X
Grimbizis, Grigoris F. http://orcid.org/0000-0002-6230-4638
Di Spiezio Sardo, Attilio http://orcid.org/0000-0002-9538-9463
Brucker, Sara Y. http://orcid.org/0000-0001-5162-1542
Article History
Received: 15 February 2018
Accepted: 12 March 2018
First Online: 16 March 2018
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: The study received prior approval (No. 205/2014BO1) from the Ethics Committee of the Medical Faculty of the University of Tübingen. All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
: The study retrospectively analyzed anonymized data from existing hospital records. For this type of study, formal consent is not required. Nonetheless, all participants gave their written informed consent to use their data in scientific studies and research publications.