International variation in neighborhood walkability, transit, and recreation environments using geographic information systems: the IPEN adult study.
Adams MA, Frank LD, Schipperijn J, Smith G, Chapman J, Christiansen LB, Coffee N, Salvo D, du Toit L, Dygrýn J, Hino AA, Lai PC, Mavoa S, Pinzón JD, Van de Weghe N, Cerin E, Davey R, Macfarlane D, Owen N, Sallis JF.
Adams MA, et al. Among authors: mavoa s.
Int J Health Geogr. 2014 Oct 25;13:43. doi: 10.1186/1476-072X-13-43.
Int J Health Geogr. 2014.
PMID: 25343966
Free PMC article.