Text and Data Mining valid from 2018-04-17
Received: 17 January 2018
Accepted: 28 March 2018
First Online: 17 April 2018
Ethics approval and consent to participate
: After approval by the ELSO Registry Committee, limited de-identified datasets are released to participating centers for research purposes without the need for further approval from individual centers. No patient consent is required. This study was conducted in accordance with the amended Declaration of Helsinki.
: The authors declare that they have no competing interests.
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