21. Open Letter to the Asilomar Conference on Hazards of Recombinant DNA Publication: Produced: [February 1975] Subject(s): DNA, RecombinantCongresses as TopicHazardous SubstancesGuidelines as Topic Archival Collection: The Maxine Singer Papers (Profiles in Science)
22. Letter from Paul Berg to Maxine and Dan Singer Publication: Produced: [15 March 1975] Archival Collection: The Maxine Singer Papers (Profiles in Science)
23. Letter from Maxine Singer to Willard Gaylin Publication: Produced: 30 April 1975 Subject(s): DNA, RecombinantHazardous Substances Archival Collection: The Maxine Singer Papers (Profiles in Science)
24. Letter from David Baltimore to Fred C. Ikle Publication: Produced: 22 May 1975 Subject(s): DNA, Recombinant Archival Collection: The Maxine Singer Papers (Profiles in Science)
25. Letter from Maxine Singer to Francesco Blasi Publication: Produced: 17 January 1975 Subject(s): HistonesSimian virus 40 Archival Collection: The Maxine Singer Papers (Profiles in Science)
26. Letter from Maxine Singer to James C. Wang Publication: Produced: 27 May 1975 Subject(s): DNA, Superhelical Archival Collection: The Maxine Singer Papers (Profiles in Science)
27. Letter from Ernst L. Wynder to Mary Lasker Publication: Produced: 3 December 1975 Subject(s): Health Care Reform Archival Collection: The Mary Lasker Papers (Profiles in Science)
28. Letter from Gerald T. Gardell to Marilyn Doyle Publication: Produced: 5 May 1975 Subject(s): Regional Medical ProgramsArthritisPilot ProjectsHealth Planning SupportPatient Education as TopicOrganizational Policy Archival Collection: The Regional Medical Programs Collection (Profiles in Science)
29. Letter from Marilyn Doyle to Matthew Spear Publication: Produced: 28 April 1975 Subject(s): Regional Medical ProgramsArthritisPilot ProjectsPatient Education as TopicHealth Planning Support Archival Collection: The Regional Medical Programs Collection (Profiles in Science)
30. Letter from Katherine Stefos to Marilyn Doyle Publication: Produced: 24 April 1975 Subject(s): Regional Medical ProgramsArthritisPilot ProjectsHealth Planning SupportOrganizational Policy Archival Collection: The Regional Medical Programs Collection (Profiles in Science)