title: The challenges of evaluating environmental interventions to increase population levels of physical activity: the case of the UK National Cycle Network.
authors.affiliation: Department of Social Medicine, University of Bristol, Bristol, UK. D.A.lawlor@bristol.ac.uk
authors.forename: D A
authors.initials: DA
authors.lastname: Lawlor
authors.forename: A R
authors.initials: AR
authors.lastname: Ness
authors.forename: A M
authors.initials: AM
authors.lastname: Cope
authors.forename: A
authors.initials: A
authors.lastname: Davis
authors.forename: P
authors.initials: P
authors.lastname: Insall
authors.forename: C
authors.initials: C
authors.lastname: Riddoch
mesh_terms: D001642:Bicycling; D004779:Environment Design; D015444:Exercise; D006293:Health Promotion / Q000379:methods*; D006801:Humans; D015397:Program Evaluation; D011634:Public Health; D006113:United Kingdom; D016138:Walking