@article{ref1,
title="A study of infant mortality from linked records: comparison of neonatal mortality from two cohort studies. United States, January-March 1950 and 1960",
journal="Vital and health statistics, Series 20",
year="1972",
author="Chase, H. C.",
volume="",
number="13",
pages="1-99",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0083-2022",
doi="",
url="http://dx.doi.org/"
}