@article{ref1,
title="Environmental and health conditions in small factories in Singapore",
journal="Singapore medical journal",
year="1975",
author="Phoon, W. O. and Tan, S. B.",
volume="16",
number="3",
pages="177-193",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0037-5675",
doi="",
url="http://dx.doi.org/"
}