People with the highest N-BNP levels were twice as likely to have died than those with the lowest levels.

BBC: Test to predict heart attack survival

They found N-BNP levels were on average three times higher in patients who died during the period of the study than in those who survived.

BBC: Test to predict heart attack survival

He was in Manhattan for Monday's BNP Paribas Showdown, an annual one-night hit-n-giggle at Madison Square Garden.

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