Feb 4 (Reuters) - Mckesson Corp ( MCK ):

* MCKESSON ADVANCES SPECIALTY LEADERSHIP; SIGNS AGREEMENT TO

ACQUIRE CONTROLLING INTEREST IN PRISM VISION HOLDINGS, LLC

* MCKESSON CORP ( MCK ) - TO PURCHASE 80% INTEREST IN PRISM VISION

FOR

$850 MILLION

* MCKESSON CORP ( MCK ) - PRISM VISION EXPECTED TO BE $0.20-$0.30

ACCRETIVE TO MCKESSON EPS IN FIRST 12 MONTHS

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