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3. CDC's 60th anniversary: director's perspective—William H. Foege, M.D., M.P.H., 1977–1983;Centers for Disease Control and Prevention;Morb. Mortal. Wkly. Rep.,2006
4. CDC's 60th anniversary: director's perspective—William L. Roper, M.D., M.P.H., 1990–1993;Centers for Disease Control and Prevention;Morb. Mortal. Wkly. Rep.,2007
5. CDC's 60th anniversary: director's perspective—David Satcher, M.D., Ph.D., 1993–1998;Centers for Disease Control and Prevention;Morb. Mortal. Wkly. Rep.,2007