Financial & competing interests disclosure
W Wagner is cofounder of Cygenia GmbH and R Goetzke contributes to this company, too. Cygenia provides service for the Epi-MSC-Score, the Epi-Tissue-Score and the Epigenetic-Senescence-Signature to other interested scientists (www.cygenia.com). This work was supported by the Else Kröner-Fresenius Stiftung (2014_A193), by the German Ministry of Education and Research (BMBF; OBELICS) and the START-Program of the Faculty of Medicine, RWTH Aachen. The authors have no other relevant affiliations or financial involvement with any organization or entity with a financial interest in or financial conflict with the subject matter or materials discussed in the manuscript apart from those disclosed.
No writing assistance was utilized in the production of this manuscript.