@article{ref1,
title="Placental separation from a seat belt injury due to severe turbulence during aeroplane travel",
journal="Journal of obstetrics and gynaecology",
year="2003",
author="Fletcher, H. M. and Wharfe, G. H. and Mitchell, S. Y.",
volume="23",
number="1",
pages="73-74",
abstract="Abstract unavailable.",
language="",
issn="0144-3615",
doi="",
url="http://dx.doi.org/"
}