@article{doi:10.1001/archinte.167.9.944,
author = {Marcus BH and Lewis BA and Williams DM and et al},
title = {A comparison of internet and print-based physical activity interventions},
journal = {Archives of Internal Medicine},
volume = {167},
number = {9},
pages = {944-949},
year = {2007},
doi = {10.1001/archinte.167.9.944},
URL = { + http://dx.doi.org/10.1001/archinte.167.9.944},
eprint = {/data/Journals/INTEMED/5591/ioi70020_944_949.pdf}
}