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EXHIBIT 21
SUBSIDIARIES OF THE REGISTRANT
There is no parent of the Company. The following is a listing of the
significant subsidiaries of the Company, or if indented, subsidiaries of the
Company under which they are listed:
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Jurisdiction of
Organization
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<S> <C>
HBO & Company................................................ Delaware
McKesson Canada Inc.......................................... Canada
Medis Health and Pharmaceutical Services Inc............... Canada
GM Holdings, Inc............................................. Delaware
McKesson General Medical Corp.............................. Virginia
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