Frailty

• Rotkreuzklinikium München — München, Bavaria, Germany
• University Medical Center Eppendorf — Hamburg, Free and Hanseatic City of Hamburg, Germany
• Agaplesion Diakonieklinikum Hamburg — Hamburg, Free and Hanseatic City of Hamburg, Germany

• Sheba medical center — Ramat Gan, Israel

• University of Pittsburgh — Pittsburgh, Pennsylvania, United States

• National Cheng Kung University — Tainan, Taiwan

• University of Michigan — Ann Arbor, Michigan, United States

• University of Michigan — Ann Arbor, Michigan, United States

Not specified

• University of Wisconsin-Madison Hospital and Clinics — Madison, Wisconsin, United States

• Başakşehir Çam and Sakura City Hospital — Istanbul, Turkey (Türkiye)

• Escoles Universitàries Gimbernat — Sant Cugat del Vallès, Barcelona, Spain