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Letter from Dorothy Noyes Sproul, Noyes & Sproul Advertising and Public Relations, New York, New York,
to Leonidas H. Berry, stating they are depth-interviewing a number of physicians, and asking for his response to a number of points
Courtesy National Library of Medicine
Topic:
Dr. Berry's CareerCreator:
Dorothy Noyes SproulDate:
February 25, 1957
