BibTex format
@article{Chalkidou:2017:10.1136/bmj.j570,
author = {Chalkidou, K and Appleby, J},
doi = {10.1136/bmj.j570},
journal = {BMJ-BRITISH MEDICAL JOURNAL},
title = {Eliminating waste in healthcare spending},
url = {http://dx.doi.org/10.1136/bmj.j570},
volume = {356},
year = {2017}
}