@article{ref1,
title="Global estimates for health situation assessment and projections 1990",
journal="World health statistics quarterly",
year="1990",
author="",
volume="Spec No",
number="",
pages="1-51",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0379-8070",
doi="",
url="http://dx.doi.org/"
}