You could call it a variation on the old hard-cop, soft-cop routine.

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The result is variation in the number of copies of that sequence, a variability we call CNV.

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Some may call it heresy, but any methodology subject to so much variation, imprecision and even manipulation should not form the basis for equity valuations.

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In a conference call this afternoon with Medicare officials, they said there is simply no business reason for such a wide variation.

NPR: 3 min 45 sec