@article{doi:10.1001/archinternmed.2009.323,
author = {Bischoff-Ferrari HA and Willett WC and Wong JB and et al},
title = {Relationship between bone, fracture, and exercise: The key role of vitamin d—reply},
journal = {Archives of Internal Medicine},
volume = {169},
number = {17},
pages = {1633-1638},
year = {2009},
doi = {10.1001/archinternmed.2009.323},
URL = { + http://dx.doi.org/10.1001/archinternmed.2009.323},
eprint = {/data/Journals/InteMed/5741/ilt0928_1638a_1638.pdf}
}