Why they mattered: C. Everett Koop

... percent of the population - a decline many attribute, at least in part, to him. But it was through Chick's work on HIV/AIDS that he and I grew close. At the time, the disease was so new that even he did not know much about it. By a quirk of fate, ...

http://www.politico.com/magazine/story/2013/12/c-everett-koop-obituary-101454.html