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2. Acquisitions (Tables)
12 Months Ended
Dec. 31, 2011
Acquisitions [Abstract]  
Schedule of Business Acquisitions, by Acquisition [Table Text Block]
The following table summarizes the purchase activity related to DiaMed (in millions):
 
 
Percent Voting Interests
 
Consideration Paid
October 2007
 
86
%
 
$
399.3

March 2008
 
3
%
 
14.0

December 2008
 
4
%
 
19.6

April 2009
 
6
%
 
30.0

February 2010
 
1
%
 
1.4

 
 
100
%
 
$
464.3