REFERENCES
- Castiglioni, Arthur: A History of Medicine. New York, Alfred A. Knopf, 1941.
- HAGCARD. H. W. Devils, Drugs and Doctors. New York, Harper and Brothers, 1929.
- Garrison, F. H.: An Introduction to the History of Medicine. Philadelphia and London, W. B. Saunders Company, 1929.
- Winslow, C. E., Smillie, W. G., Doull, J. A. and Gordon, J. W.: The History of American Epidemiology. St. Louis, C. V. Mosby Compauy, 1952.
- Accident Facts. National Safety Council, Chicago, 1953.