BibTex format
@article{Naqvi:2018:10.1136/heartjnl-2017-312753,
author = {Naqvi, N and Doughty, VL and Starling, L and Franklin, RC and Ward, S and Daubeney, PEF and Balfour-Lynn, IM},
doi = {10.1136/heartjnl-2017-312753},
journal = {Heart},
pages = {1333--1338},
title = {Hypoxic challenge testing (Fitness to Fly) in children with complex congenital heart disease},
url = {http://dx.doi.org/10.1136/heartjnl-2017-312753},
volume = {104},
year = {2018}
}