Funding for this research was provided by:
Received: 13 May 2018
Accepted: 18 April 2019
First Online: 4 May 2019
Ethics approval and consent to participate
: This study, with protocol number S59783, was approved by the Medical Ethics Committee of UZ KU Leuven/Research on the 30th of November 2016. Informed consent was obtained from all participants, including interviewed experts and physicians that completed the questionnaire.
: Not applicable.
: All authors declare that they have no competing interests. All authors read and approved the final manuscript. Pfizer nv/sa was not a sponsor of the study but provided support to Liese Vandeborne with access to their infrastructure, expertise and statistical aid during the conduct of this study. No undue influence from Pfizer nv/sa was experienced on the presented work, and Pfizer nv/sa did not receive any data obtained in this study.
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