1. Letter from Arthur Kornberg to Edwin G. Kreb Publication: Produced: 17 February 1949 Subject(s): EnzymesHospitalsNational Institutes of Health (U.S.) Archival Collection: The Arthur Kornberg Papers (Profiles in Science)
2. Letter from Richard M. Pearce to Alan Gregg Publication: Produced: 13 February 1929 Subject(s): HospitalsPsychiatry Archival Collection: The Alan Gregg Papers (Profiles in Science)
3. Letter from Roger S. Greene to Alan Gregg Publication: Produced: 21 November 1930 Subject(s): HospitalsSchools, MedicalMidwiferyNursing Archival Collection: The Alan Gregg Papers (Profiles in Science)