. 2015 Oct 6;15(1):22–27. doi: 10.1111/acel.12400
© 2015 The Authors. Aging Cell published by the Anatomical Society and John Wiley & Sons Ltd.
This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
Figure 1.
CONSORT diagram.