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Bielderman, Annemiek, Cees P. van der Schans, Marie-Rose J. van Lieshout, Mathieu HG de Greef, Froukje Boersma, Wim P. Krijnen, und Nardi Steverink. Multidimensional Structure of the Groningen Frailty Indicator in Community-dwelling Older People. BioMed Central, 2013.

Bielderman, Annemiek, et al. Multidimensional Structure of the Groningen Frailty Indicator in Community-dwelling Older People. BioMed Central, 2013.