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Tainio, Marko and de Nazelle, Audrey J. and Goetschi, Thomas and Kahlmeier, Sonja and Rojas-Rueda, David and Nieuwenhuijsen, Mark J. and de Sa, Thiago Herick and Kelly, Paul and Woodcock, James (2016) Can air pollution negate the health benefits of cycling and walking? PREVENTIVE MEDICINE, 87. pp. 233-236.
Kelly, Paul and Kahlmeier, Sonja and Götschi, Thomas and Orsini, Nicola and Richards, Justin and Roberts, Nia and Scarborough, Peter and Foster, Charlie (2014) Systematic review and meta-analysis of reduction in all-cause mortality from walking and cycling and shape of dose response relationship. INTERNATIONAL JOURNAL OF BEHAVIORAL NUTRITION AND PHYSICAL ACTIVITY, 11.