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Several studies demonstrated that the presence of,<br />
satisfaction with and effectiveness of a usual source<br />
of care (other than EDs) significantly decreased the<br />
ut<strong>il</strong>ization of ED<br />
The changing prof<strong>il</strong>e of patients who used Emergency Department Services in the<br />
United States: 1997 to 2005- K.Tom Xu et Al. – Ann. Emerg. Med. 2009;54:805-810