Aetna 2013 Annual Report Download - page 149

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The Board of Directors and Shareholders
Aetna Inc.
Page 2 of 2
accordance with generally accepted accounting principles, and that receipts and expenditures of
the company are being made only in accordance with authorizations of management and
directors of the company; and (3) provide reasonable assurance regarding prevention or timely
detection of unauthorized acquisition, use, or disposition of the company's assets that could have
a material effect on the financial statements.
Because of its inherent limitations, internal control over financial reporting may not prevent or
detect misstatements. Also, projections of any evaluation of effectiveness to future periods are
subject to the risk that controls may become inadequate because of changes in conditions, or that
the degree of compliance with the policies or procedures may deteriorate.
In our opinion, the consolidated financial statements referred to above present fairly, in all
material respects, the financial position of the Company as of December 31, 2013 and 2012, and
the results of its operations and its cash flows for each of the years in the three-year period ended
December 31, 2013, in conformity with U.S. generally accepted accounting principles. Also in
our opinion, the Company maintained, in all material respects, effective internal control over
financial reporting as of December 31, 2013, based on criteria established in Internal Control –
Integrated Framework (1992) issued by COSO.
Hartford, Connecticut
February 28, 2014
Annual Report - Page 143