Text and Data Mining valid from 2019-02-14
Received: 18 November 2018
Accepted: 7 February 2019
First Online: 14 February 2019
Ethics approval and consent to participate
: The OcEAN study was approved by the ethical committee of the Medical Faculty of the University of Leipzig, Germany (265–14-25,082,014).
: Not applicable.
: The authors declare that they have no competing interests.
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