Show 10 5 10 15 20 50 100 250 Sort by year (new to old) Actions News feed Embed this list Save this search Mark all Export Your filters: cql: author="Bollig, Claudia" or (type exact bookEditor and editor="Bollig, Claudia") Mark journalArticle open access A Proposal for the Retrospective Identification and Categorization of Older People With Functional Impairments in Scientific Studies—Recommendations of the Medication and Quality of Life in Frail Older Persons (MedQoL) Research Group Simone Brefka, Dhayana Dallmeier, Viktoria Mühlbauer, Christine A.F. von Arnim, Claudia Bollig, Graziano Onder, Mirko Petrovic (UGent) , Carlos Schönfeldt-Lecuona, Moritz Seibert, Gabriel Torbahn, et al. (2019) Journal of the American Medical Directors Association.