BibTex format
@article{Mackenzie:2016:10.1002/bjs.9963,
author = {Mackenzie, H and Markar, SR and Askari, A and Ni, M and Faiz, O and Hanna, GB},
doi = {10.1002/bjs.9963},
journal = {British Journal of Surgery},
pages = {88--96},
title = {National proficiency-gain curves for minimally invasive gastrointestinal cancer surgery},
url = {http://dx.doi.org/10.1002/bjs.9963},
volume = {103},
year = {2016}
}