1. Memorandum from William H. Foege, Centers for Disease Control to C. Everett Koop Creator: Foege, William H.CDC Date: 4 February 1983 Genre: Memorandums
2. Memorandum from C. Everett Koop to William H. Foege, Centers for Disease Control and Arthur Hull Hayes Jr., Food and Drug Administration Creator: Koop, Charles Everett, 1916-2013 Date: 9 December 1982 Genre: Memorandums
3. Memorandum from Arthur Hull Hayes Jr., Food and Drug Administration to C. Everett Koop Creator: Hayes, Arthur Hull, JrUnited States. Food and Drug Administration Date: 6 January 1983 Genre: Memorandums