Express Scripts 2011 Annual Report Download - page 56

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Express Scripts 2011 Annual Report
54
Item 8 — Consolidated Financial Statements and Supplementary Data
Report of Independent Registered Public Accounting Firm
To the Board of Directors and Stockholders of Express Scripts, Inc.:
In our opinion, the consolidated financial statements listed in the index appearing under Item 15(1) present fairly,
in all material respects, the financial position of Express Scripts, Inc. and its subsidiaries at December 31, 2011 and
December 31, 2010, and the results of their operations and their cash flows for each of the three years in the period ended
December 31, 2011 in conformity with accounting principles generally accepted in the United States of America. In
addition, in our opinion, the financial statement schedule listed in the index appearing under Item 15(2) presents fairly, in
all material respects, the information set forth therein when read in conjunction with the related consolidated financial
statements. Also in our opinion, the Company maintained, in all material respects, effective internal control over financial
reporting as of December 31, 2011, based on criteria established in Internal Control - Integrated Framework issued by the
Committee of Sponsoring Organizations of the Treadway Commission (COSO). The Company’s management is
responsible for these financial statements and financial statement schedule, for maintaining effective internal control over
financial reporting and for its assessment of the effectiveness of internal control over financial reporting, included in
Management’s Report on Internal Control Over Financial Reporting appearing under Item 9A. Our responsibility is to
express opinions on these financial statements, on the financial statement schedule and on the Company’s internal control
over financial reporting based on our integrated audits. We conducted our audits in accordance with the standards of the
Public Company Accounting Oversight Board (United States). Those standards require that we plan and perform the audits
to obtain reasonable assurance about whether the financial statements are free of material misstatement and whether
effective internal control over financial reporting was maintained in all material respects. Our audits of the financial
statements included examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements,
assessing the accounting principles used and significant estimates made by management, and evaluating the overall
financial statement presentation. Our audit of internal control over financial reporting included obtaining an understanding
of internal control over financial reporting, assessing the risk that a material weakness exists, and testing and evaluating the
design and operating effectiveness of internal control based on the assessed risk. Our audits also included performing such
other procedures as we considered necessary in the circumstances. We believe that our audits provide a reasonable basis for
our opinions.
A company’s internal control over financial reporting is a process designed to provide reasonable assurance
regarding the reliability of financial reporting and the preparation of financial statements for external purposes in
accordance with generally accepted accounting principles. A company’s internal control over financial reporting includes
those policies and procedures that (i) pertain to the maintenance of records that, in reasonable detail, accurately and fairly
reflect the transactions and dispositions of the assets of the company; (ii) provide reasonable assurance that transactions are
recorded as necessary to permit preparation of financial statements in 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 (iii) 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.
/s/ PricewaterhouseCoopers LLP
St. Louis, Missouri
February 22, 2012