1. A Report of the Medical Research Council Committee on inoculation procedures and neurologicale lesions. Poliomyelitis and Tonsillectomy. Lancet6879, 5 (1955).
2. Albrecht, R. M., andF. B. Locke: Effect of physical activity on prognosis of poliomyelitis. J. Amer. Med. Assoc.146, 769–771 (1951).
3. Anderson, W., A. E. Skaar andF. Sandler: The risk of poliomyelitis after tonsillectomy. Ann. of Otol.59, 602 (1950).
4. Anderson, G. W., G. Anderson, A. Skaar andF. Sandler: Poliomyelitis in pregnancy. Amer. J. Hyg.55, 127 (1952).
5. Aycock, W. L.: Familiar aggregation in Poliomyelitis. Amer. J. Med. Sci.203, 452 (1942).