Funding for this research was provided by:
Agentschap voor Innovatie door Wetenschap en Technologie (135182)
Research Foundation - Flanders (1133320N)
Text and Data Mining valid from 2019-08-07
Received: 9 April 2019
Accepted: 30 July 2019
First Online: 7 August 2019
Ethics approval and consent to participate
: The Medical Ethics Committee of University Hospitals Leuven approved the study (B322201422910). Written informed consent was obtained from all participants or their proxies.
: Not applicable.
: KM is a member of the editorial board of BMC Geriatrics (section editor). He was not involved in the editorial process of the current paper. All other authors declare that they have no competing interests.