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Associated Press
FILE - In this Sept. 19, 1974 file photo, Dr. C. Everett Koop, surgeon-in-chief at Children's Hospital in Philadelphia, talks about surgery that separated 13-month-old conjoined twins, Clara and Alta Rodriguez, at the hospital. Koop, who went on to serve as U.S. surgeon general, raised the profile of the office by riveting America's attention on the then-emerging disease known as AIDS and by railing against smoking. Koop died Monday, Feb. 25, 2013, in Hanover, N.H.  He was 96. (AP Photo/William G. Ingram, File)

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