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2. The influence of technique on the sensitivity of monkeys to intraspinally inoculated poliovirus;Beswick;Journal of Hygiene (London),1961
3. Performance of the neurovirulence test on oral poliovaccine by the intraspinal route of inoculation;Boulger;Bolletin Istituto Sieroterapico Milanese,1966
4. The effect of the route of inoculation and species of monkey on the sensitivity of the neurovirulence test;Boulger,1966