@article{ref1,
title="Preventive medicine--professed much, practiced little",
journal="American journal of diseases of children (1960)",
year="1977",
author="Bergman, A. B.",
volume="131",
number="6",
pages="638-643",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0002-922X",
doi="",
url="http://dx.doi.org/"
}