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2. Banting, Best, Collip and Macleod: Transactions of the royal society of Canada, 3. Serie, Sekt. 5,15, 1922.
3. Winter undSmith: Britisch. Med. Journ. April 1923. S. 711.
4. Bornstein: Biochem. Zeitschr.114, 163.
5. Bornstein undMüller: Biochem. Zeitschr.126, 65.