441. Letter from Harold Varmus to Peter Bentvelzen, Radiobiological Institute of the Organization for Health Research (The Netherlands) Publication: Produced: 9 September 1975 Subject(s): Mammary Tumor Virus, Mouse Archival Collection: The Harold Varmus Papers (Profiles in Science)
442. Report of the 3rd International Congress of Virology Publication: Produced: [1975?] Subject(s): Congresses as TopicRNA, ViralAvian Sarcoma Viruses Archival Collection: The Harold Varmus Papers (Profiles in Science)
443. Letter from Harold Varmus to Salvador E. Luria Publication: Produced: 21 October 1975 Subject(s): Financing, OrganizedAvian Sarcoma VirusesMammary Tumor Virus, Mouse Archival Collection: The Harold Varmus Papers (Profiles in Science)
444. And A Happy Birthday to You, Rich, Famous Siamese Twins Publication: Philadelphia Inquirer (Firm), 10 August 1975 Archival Collection: The C. Everett Koop Papers (Profiles in Science)
445. The Twins: Even A Fever Is Cause for Fear Publication: Philadelphia Inquirer (Firm), 11 August 1975 Archival Collection: The C. Everett Koop Papers (Profiles in Science)
446. The Children's Hospital of Philadelphia dedication of the C. Everett Koop Surgical Center Publication: Produced: 30 January 1975 Subject(s): Anniversaries and Special Events Archival Collection: The C. Everett Koop Papers (Profiles in Science)
447. Summary Statement of the Asilomar Conference on Recombinant DNA Molecules Publication: Produced: 20 May 1975 Subject(s): DNA, Recombinant Archival Collection: The C. Everett Koop Papers (Profiles in Science)
450. Have no mis-conceptions Publication: [New York?] : Planned Parenthood, [1975?] Subject(s): Family Planning ServicesContraception Behavior