Text and Data Mining valid from 2018-06-08
Received: 21 February 2018
Accepted: 31 May 2018
First Online: 8 June 2018
Ethics approval and consent to participate
: The study was approved by the Institutional research board of the Erasmus MC, registration 2011–400. Informed consent was obtained from all patients, and/or parents/legal representatives according to Dutch law.
: The authors declare that they have no competing interest.
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