Funding for this research was provided by:
Paul G. Allen Frontiers Group
Received: 9 May 2021
Accepted: 5 November 2021
First Online: 23 December 2021
: S.H. is a founder of the nonprofit Epigenetic Clock Development Foundation which plans to license several patents from his employer UC Regents. These patents list S.H. as inventor. All other authors have no competing interests.