When, under intense political pressure, the National Cancer Institute changed its position on mammograms in 1997, recommending the screens every other year for women in their 40s, the primacy of politics over science in this matter was firmly established.
Deutsche Bank donated a Tiffany decanter. State Street Global Advisors Inc. threw in four tickets to see the Patriots play the Jets. And Bank of America Merrill Lynch arranged for eight tickets to see Justin Bieber.
A mammogram every other year reduces the risk that most women will be incorrectly told they may have breast cancer, without increasing the odds they will be diagnosed with advanced disease, researchers said.