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Letter from Leonidas H. Berry to Dr. B. H. Sullivan, chief, Division of Gastroenterology, Cleveland Clinic,

about the use of a book at Cook County Graduate School as it enhances their tutoring experience; and with the letter is a brochure announcing a postgraduate course on colonoscopy techniques and application at the Cleveland Clinic Educational Foundation March 19-20, 1976

Courtesy National Library of Medicine

Page with handwritten text.