@article{ref1,
title="Visual acuity standards for beach lifeguards",
journal="British journal of ophthalmology",
year="2007",
author="Tipton, Michael J. and Reilly, T. and Scarpello, Emily and McGill, James",
volume="91",
number="11",
pages="1570-1571",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0007-1161",
doi="10.1136/bjo.2007.115212",
url="http://dx.doi.org/10.1136/bjo.2007.115212"
}