Mckesson says to co's knowledge, there have been no additional developments beyond disclosure of receiving a subpoena in most recent 10-q

Mckesson, in response to report on probe of opioid makers, distributors, says information about co getting a subpoena was disclosed in most recent 10-q.mckesson says "to our knowledge, there have been no additional developments" beyond co's disclosure of receiving a subpoena in co's most recent 10-q.
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