title: Invited commentary.
authors: ICF Research Branch of WHO Collaborating Center for the Family of International Classifications, German Institute of Medical Documentation and Information (DIMDI), Swiss Paraplegic Research (SPF), Nottwil, Switzerland.
authors: Reuben
authors: R
authors: Escorpizo
authors: Alarcos
authors: A
authors: Cieza
authors: Gerold
authors: G
authors: Stucki
mesh_terms: D000058:Accidental Falls / Q000706:statistics & numerical data*; D004185:Disability Evaluation; D006305:Health Status Indicators; D006801:Humans; D017063:Outcome Assessment, Health Care; D015203:Reproducibility of Results; D020521:Stroke / Q000503:physiopathology*