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Letter from Leonidas H. Berry to John Chalakani, American Cystoscope Makers, Inc., Bronx, New York,

re-inquiring about possibility of Chalakani demonstrating a couple of his instruments in one of Berry's gastroscopy clinic classes; they have the largest teaching set-up in gastroscopy in the country and give three training courses a year

Courtesy National Library of Medicine

Page with typewritten text.