Association between neighborhood walkability and GPS-measured walking, bicycling and vehicle time in adolescents
Titel:
Association between neighborhood walkability and GPS-measured walking, bicycling and vehicle time in adolescents
Auteur:
Carlson, Jordan A. Saelens, Brian E. Kerr, Jacqueline Schipperijn, Jasper Conway, Terry L. Frank, Lawrence D. Chapman, Jim E. Glanz, Karen Cain, Kelli L. Sallis, James F.