Media type: E-Article Title: Explaining socio-economic status differences in walking for transport: An ecological analysis of individual, social and environmental factors Contributor: Cerin, Ester; Leslie, Eva; Owen, Neville imprint: Elsevier BV, 2009 Published in: Social Science & Medicine Language: English DOI: 10.1016/j.socscimed.2009.01.008 ISSN: 0277-9536 Origination: Footnote: