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Letter to Doctor Macleod 10/01/1924
Letter to Dr. Banting ca. 1923
Letter to Dr. Frederick G. Banting 16/08/1922
Letter to Dr. Banting 07/07/1925
Telegram to Doctor Frederick G. Banting 25/10/1923
Letter to Dr. Banting 21/12/1922
Letter to Monsieur le Professeur Banting 5/02/1923