1. Letter from Alan Gregg to Walter B. Cannon Publication: Produced: 5 March 1936 Subject(s): Research Support as TopicPoliomyelitis Archival Collection: The Alan Gregg Papers (Profiles in Science)
2. Letter from Alan Gregg to Walter B. Cannon Publication: Produced: 18 March 1936 Subject(s): Research Support as Topic Archival Collection: The Alan Gregg Papers (Profiles in Science)