About the Authors

Liesbeth Hempenius

l.hempenius@umcg.nl

Affiliations University Center for Geriatric Medicine, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands, Geriatric Center, Medical Center Leeuwarden, Leeuwarden, The Netherlands

Joris P. J. Slaets

Affiliation University Center for Geriatric Medicine, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands

Dieneke van Asselt

Affiliation Geriatric Center, Medical Center Leeuwarden, Leeuwarden, The Netherlands

Geertruida H. de Bock

Affiliation Department of Epidemiology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands

Theo Wiggers

Affiliation Department of Surgery, University Medical Center Groningen, University of Groningen, Groningen, T`he Netherlands

Barbara L. van Leeuwen

Affiliation Department of Surgery, University Medical Center Groningen, University of Groningen, Groningen, T`he Netherlands

Competing Interests

The authors declared that no competing interests exist.

Author Contributions

Concieved and designed the experiments: BLvL TW GHdB JPJS. Analyzed the data: LH GHdB BLvL. Wrote the paper: LH BLvL DZBvA GHdB JPJS TW.