BibTex format
@article{Woodcock:2013:10.1136/emermed-2012-201175,
author = {Woodcock, T and Poots, AJ and Bell, D},
doi = {10.1136/emermed-2012-201175},
journal = {Emergency Medicine Journal},
title = {The impact of changing the 4 h emergency access standard on patient waiting times in emergency departments in England},
url = {http://dx.doi.org/10.1136/emermed-2012-201175},
year = {2013}
}