title: The outdoor mobility of elderly people--a comparative study in three European countries.
authors: WZB, Berlin, Germany.
authors: H
authors: H
authors: Mollenkopf
authors: F
authors: F
authors: Marcellini
authors: I
authors: I
authors: Ruoppila
mesh_terms: D000203:Activities of Daily Living; D000368:Aged / Q000502:physiology; D004779:Environment Design; D005387:Finland; D005858:Germany; D006801:Humans; D007558:Italy; D011788:Quality of Life; D012944:Social Support; D014186:Transportation; D016138:Walking