Received: 24 April 2019
Accepted: 30 July 2019
First Online: 30 August 2019
Ethics approval and consent to participate
: All individuals from the CKB provided written informed consent. Ethics approval was obtained from the Peking University and University of Oxford ethics committees. All participants from the Copenhagen City Heart Study, and the Copenhagen General Population Study provided written informed consent and Ethics approval was obtained from Danish ethical committees.
: The authors declare that they have no competing interests.