1. Baird, H.W., III, and Nelson, W.E. : Textbook of Pediatrics, Ed. 8. Philadelphia, W. B. Saunders Co. , 1964, pp. 1217-1219.
2. Bureau of the Census, quoted in The World Almanac and Book of Facts, 80th Ed. New York World Telegram, 1965, pp. 288, 320.
3. Convulsions in Childhood