"This gives us the opportunity to really do patient-specific and individualized medicine, " Hollister said.

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Today, the Senate unanimously passed a bill that scientists say could help speed the age of individualized medicine.

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Both of these drugs are emblematic of avant-garde, precise, individualized medicine in which a specific genetic mutation in a patient is matched up with the action of the drug.

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Someday a new style of individualized medicine will let doctors analyze the DNA in a patient's tumor, then administer customized cocktails of drugs designed to attack that tumor's particular genetic defects.

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The new study may point toward more individualized medicine -- one day people may be screened for these brain abnormalities that indicate high depression risk, and receive treatment based on that, he said.

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