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"Surgery is an art," says neurosurgeon Michael Lim, who plays the violin when he isn't excising lesions from brains. As director of the Metastatic Brain Tumor Center at Johns Hopkins, Lim performs about 350 such procedures a year. It's a job that requires a wealth of high tech tools—and they must be deployed with a finesse that would put a concert violinist to shame.
Photos: Andrew Tingle
