Funding for this research was provided by:
Stichting Alzheimer Nederland (WE09.2014-03)
Stichting VUmc Fonds
Stichting Dioraphte (VSM 14 04 14 02)
Received: 20 June 2018
Accepted: 21 June 2018
First Online: 23 July 2018
Ethics approval and consent to participate
: The 100-Plus Study was approved by the Medical Ethical Committee of the VU University Medical Center. Informed consent was obtained from all study participants. The detailed study protocol is described elsewhere [CitationRef removed].
: All authors and co-authors have reviewed and approved the manuscript for submission.
: The authors declare that they have no competing interest.
: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.