Received: 23 January 2018
Accepted: 23 May 2018
First Online: 8 June 2018
Compliance with ethical standards
: No conflict of interest.
: The Rotterdam Study has been approved by the institutional review board (Medical Ethics Committee) of the Erasmus Medical Center and by the review board of The Netherlands Ministry of Health, Welfare and Sports. The approval has been renewed every 5 years. All participants gave informed consent.