RT Journal Article
SR Electronic
T1 The challenges of evaluating environmental interventions to increase population levels of physical activity: the case of the UK National Cycle Network
JF Journal of Epidemiology and Community Health
JO J Epidemiol Community Health
FD BMJ Publishing Group Ltd
SP 96
OP 101
DO 10.1136/jech.57.2.96
VO 57
IS 2
A1 D A Lawlor
A1 A R Ness
A1 A M Cope
A1 A Davis
A1 P Insall
A1 C Riddoch
YR 2003
UL http://jech.bmj.com/content/57/2/96.abstract
AB