* Jean Heller (Associated Press), "Syphilis Victims in the U.S. Study Went Untreated for 40 Years" "New York Times", July 26, 1972: 1, 8.
* Jean Heller (Associated Press), «Syphilis Victims in the U.S. Study Went Untreated for 40 Years» "New York Times", July 26, 1972: 1, 8.