BibTex format
@article{Chhaya:2015:10.1111/apt.13017,
author = {Chhaya, V and Saxena, S and Cecil, E and Chatu, S and Subramanian, V and Curcin, V and Majeed, A and Pollok, RC},
doi = {10.1111/apt.13017},
journal = {ALIMENTARY PHARMACOLOGY & THERAPEUTICS},
pages = {87--98},
title = {The impact of timing and duration of thiopurine treatment on colectomy in ulcerative colitis: a national population-based study of incident cases between 1989-2009},
url = {http://dx.doi.org/10.1111/apt.13017},
volume = {41},
year = {2015}
}