Funding for this research was provided by:
Text and Data Mining valid from 2019-01-29
Received: 3 September 2018
Accepted: 22 December 2018
First Online: 29 January 2019
Ethics approval and consent to participate
: The protocol of the ViRTAS study has been approved by the Medical Ethics Review Committee of Slotervaart Hospital and Reade, Amsterdam, The Netherlands (P1668, NL59737.048.16). Written informed consent will be obtained from all people who agree to take part in the study.
: Not applicable.
: The authors declare that they have no competing interests.
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