@article{ref1,
title="The backgrounds of social medicine; the etiology and epidemiology of health and disease",
journal="Burma medical journal",
year="1958",
author="San martin, H.",
volume="6",
number="2",
pages="51-56",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0007-6295",
doi="",
url="http://dx.doi.org/"
}