Text and Data Mining valid from 2018-05-18
Received: 6 October 2016
Accepted: 1 May 2018
First Online: 18 May 2018
Ethics approval and consent to participate
: The content of this study was approved by the Institutional Review Board “Ethikkommission des Landes Salzburg” on 7.9.2012 (Reference number 415-EP/73/145 2012). All patients had given an informed consent to planned mode of delivery. The manuscript does not contain data from individual person. Consent to participate is not applicable.
: Not applicable. Consent for publication was not required, as data were anonymized and informed consent was waived by the ethics committee.
: The authors declare that they have no competing interests.
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