title: A short history of walking.
authors.affiliation: Institute of Child Health, London. Ian.Roberts@ich.ucl.ac.uk
authors.forename: I
authors.initials: I
authors.lastname: Roberts
mesh_terms: D000059:Accidents; D000367:Age Factors; D001336:Automobiles; D006801:Humans; D011634:Public Health; D012737:Sex Factors; D012961:Sociology; D016138:Walking / Q000639:trends*