title: Comment on: A critical analysis of the internal logic in the Life-Space Assessment (LSA) composite score and suggested solutions.
authors.affiliation: Gerontology Research Center and Department of Health Sciences, University of Jyvaskyla, Jyväskylä, Finland erja.portegijs@jyu.fi.
authors.forename: Erja
authors.initials: E
authors.lastname: Portegijs
authors.affiliation: Gerontology Research Center and Department of Health Sciences, University of Jyvaskyla, Jyväskylä, Finland.
authors.forename: Anne
authors.initials: A
authors.lastname: Viljanen
authors.affiliation: Gerontology Research Center and Department of Health Sciences, University of Jyvaskyla, Jyväskylä, Finland.
authors.forename: Merja
authors.initials: M
authors.lastname: Rantakokko
authors.affiliation: Gerontology Research Center and Department of Health Sciences, University of Jyvaskyla, Jyväskylä, Finland.
authors.forename: Taina
authors.initials: T
authors.lastname: Rantanen
mesh_terms: D000203:Activities of Daily Living; D006801:Humans; D008128:Logic; D051346:Mobility Limitation; D012046:Rehabilitation