@article{ref1,
title="Increase in older adults reporting mountaineering-related injury or illness in the United States, 1973-2010",
journal="Wilderness and environmental medicine",
year="2013",
author="Platts-Mills, Timothy F. and Hunold, Katherine M.",
volume="24",
number="1",
pages="86-88",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="1080-6032",
doi="10.1016/j.wem.2012.08.014",
url="http://dx.doi.org/10.1016/j.wem.2012.08.014"
}