BibTex format
@article{Weston:2017:occmed/kqx032,
author = {Weston, D and Parsons, V and Ntani, G and Rushton, L and Madan, I},
doi = {occmed/kqx032},
journal = {Occupational Medicine-Oxford},
pages = {305--307},
title = {Mixed contact methods to improve response to a postal questionnaire.},
url = {http://dx.doi.org/10.1093/occmed/kqx032},
volume = {67},
year = {2017}
}