Funding for this research was provided by:
Text and Data Mining valid from 2018-08-28
Received: 12 June 2017
Accepted: 1 May 2018
First Online: 28 August 2018
Ethics approval and consent to participate
: The primary study, FER-ASAP, had received approvals from each respective ethics committee. Therefore, post-hoc subgroup-analysis did not require additional approval or consent.
: The authors declare that they have no competing interests.
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