Affiliation: | 1. Department of Dermatology, Universitair Ziekenhuis Brussel, Vrije Universiteit Brussel, Brussels, Belgium;2. University of California–San Francisco Health System, San Francisco, California;3. Geriatric Department/Frailty in Ageing Research Group, Vrije Universiteit Brussel, Universitair Ziekenhuis Brussel, Brussels, Belgium |