@article{ref1,
title="Preventive medicine in the elderly population",
journal="Drugs and aging",
year="1991",
author="Sainsbury, R. and Hanger, H. C.",
volume="1",
number="5",
pages="345-352",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="1170-229X",
doi="",
url="http://dx.doi.org/"
}