BibTex format
@article{Greenfield:2017:10.1136/bmj.j1469,
author = {Greenfield, G},
doi = {10.1136/bmj.j1469},
journal = {BMJ-BRITISH MEDICAL JOURNAL},
title = {Rethinking primary care’s gatekeeper role},
url = {http://dx.doi.org/10.1136/bmj.j1469},
volume = {356},
year = {2017}
}