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On the Trail of BRCA1
The Scientist 2004, 18(5):14
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After 16 years of exhausting research, data collection and computation, Mary-Claire King's lab determined in 1990 that a mutation on chromosome 17 was a common occurrence among women in families that had clusters of breast cancer. This family tree shows one of the families in the study. Squares are men, circles are women. Blackened circles indicate women with breast cancer. A cross through the symbol means that person died.
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