Company:  MERCK & CO. INC. (MRK)
Form Type:  11-K
Filing Date:  6/26/2012 
CIK:  0000310158 
Address:  ONE MERCK DRIVE
P.O. BOX 100
 
City, State, Zip:  WHITEHOUSE STATION, New Jersey 08889-0100 
Telephone:  908-423-4840 
Fiscal Year:  12/31 
Last Trade
Last Trade: 
$45.99  
Change: 
-0.38 (-0.82%)  
Trade Time: 
May 17  
Market Cap: 
$138.87B
Description of Business
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  FORM 11-K
    Report of Independent Registered Public Accounting Firm
    STATEMENT OF NET ASSETS
    STATEMENT OF CHANGES IN NET ASSETS
    Notes to Financial Statements
    SCHEDULE OF ASSETS
    SIGNATURE
    EXHIBIT INDEX
  EXHIBIT 23
    CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM