@article{ref1,
title="Exercise and airway injury in athletes",
journal="Acta medica Portuguesa",
year="2013",
author="Couto, Mariana and Silva, Diana and Delgado, Luis and Moreira, André",
volume="26",
number="1",
pages="56-60",
abstract="Abstract available from the publisher.<p /> <p>Language: en</p>",
language="en",
issn="0870-399X",
doi="",
url="http://dx.doi.org/"
}