BibTex format
@article{Wong:2018:10.1136/bmjopen-2017-020068,
author = {Wong, JLC and Mason, A and Gordon, A and Brett, S},
doi = {10.1136/bmjopen-2017-020068},
journal = {BMJ Open},
title = {Are large randomized controlled trials in severe sepsis and septic shock statistically disadvantaged by repeated inadvertent underestimates of required sample size},
url = {http://dx.doi.org/10.1136/bmjopen-2017-020068},
volume = {8},
year = {2018}
}