Funding for this research was provided by:
Text and Data Mining valid from 2018-03-09
Received: 2 November 2017
Accepted: 26 February 2018
First Online: 9 March 2018
Ethics approval and consent to participate
: The need for ethical approval was waived by the Medical Ethical committee from the University Medical Center Groningen (METc 2017/196). Written informed consent will be obtained from all patients or legal representatives.Participating centers have signed an intent to participate.
: Not applicable.
: The authors declare that they have no competing interests.
: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.