International comparison of observation-specific spatial buffers: maximizing the ability to estimate physical activity.
Frank LD, Fox EH, Ulmer JM, Chapman JE, Kershaw SE, Sallis JF, Conway TL, Cerin E, Cain KL, Adams MA, Smith GR, Hinckson E, Mavoa S, Christiansen LB, Hino AA, Lopes AA, Schipperijn J.
Frank LD, et al. Among authors: lopes aa.
Int J Health Geogr. 2017 Jan 23;16(1):4. doi: 10.1186/s12942-017-0077-9.
Int J Health Geogr. 2017.
PMID: 28114945
Free PMC article.