@article{ref1,
title="Ambulatory care visits to physician offices, hospital outpatient departments, and emergency departments: United States, 1996",
journal="Ambulatory outreach",
year="1998",
author="Schappert, S. M.",
volume="1998",
number="Summer",
pages="8-11",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="1094-6829",
doi="",
url="http://dx.doi.org/"
}