Is the relationship between the built environment and physical activity moderated by perceptions of crime and safety?
Bracy NL, Millstein RA, Carlson JA, Conway TL, Sallis JF, Saelens BE, Kerr J, Cain KL, Frank LD, King AC. Is the relationship between the built environment and physical activity moderated by perceptions of crime and safety? Int J Behav Nutr Phys Act. 2014 Feb 24; 11(1):24.