1. Kobler J. The Reluctant Surgeon, A biography of John Hunter. Garden City, NY: Doubleday, 1960.
2. Godlee RJ. Lord Lister. London: Macmillan, 1917.
3. Billroth T. Lectures on Surgical Pathology and Therapeutics, 2 vols. London: New Sydenham Society, 1877; 1: 3.
4. Billings JS. A century of American medicine: IV. Literature and institutions. Am J Med Sci 1876; 72: 439.
5. Bliss M. The Discovery of Insulin. Chicago: University of Chicago Press, 1982.