Freezing skin cancer samples

Playing with liquid nitrogen

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Lindsey Jager, a first-year doctoral student in immunology, places skin-cancer cell samples in a bath of liquid nitrogen at a laboratory on UF’s main campus in Gainesville – Thursday, May 3, 2007. The samples are from melanomas, the deadliest type of skin cancer. Jager, 27, is helping her graduate advisor, immunologist Howard Johnson, develop a vaccine to prevent melanomas.

By Josh Wickham

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