1. Ainslie, J. D.: The growth curve of the lancing strain of poliomyelitis virus in the central nervous system of the mouse. J. of Exper. Med. 95, 1 (1952).
2. Ansoss, H. L., and E. Taylor: Neutralization of the virus of poliomyelitis by nasal washings. J. of Exper. Med. 25, 507 (1917).
3. Anderson, D. M., and J. H. Dixon: Acute bulbar paralysis. Report of two cases. Brit. Med. J. 1938 II, 1077.
4. Anderson, G. W., G. Anderson, A. Sraar and F. Sandler: Poliomyelitis in pregnancy. Amer. J. Hyg. 55, 127 (1952).
5. Anderson, G. W., and A. E. Shaar: Poliomyelitis occuring after antigen injections. Bull. Univ. Minnesota Hosp. 22, 359 (1951).