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In the late 1950s Bob Egan at the University of Texas M.D. Anderson Cancer Center combined a technique of low kVp with high mA and single emulsion films to devise a method of screening mammography for the first time. He published these results in 1959 in a paper, and subsequently in a book in 1964 called Mammography.[35]The "Egan technique", as it became known, enabled physicians to detect calcification in breast tissue.
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