@article{doi:,
author = {Wang TJ and Stafford RS},
title = {PRoblems with measuring the use of β-blockers in ambulatory settings for secondary prevention in patients with coronary artery disease},
journal = {Archives of Internal Medicine},
volume = {159},
number = {7},
pages = {755-756},
year = {1999},
doi = {},
URL = { + http://dx.doi.org/},
eprint = {/data/Journals/INTEMED/11941/ilt0412.pdf}
}