| 標題（洋） | | Studies on the hemagglutinin of Japanese encephalitis virus. 1)Efect of Tween 80 on the haemagglutinating activity of groupB arboviruses. 2 Biological and immunological studies on two sub-strains,c-1 and c-3,derived from the Nakayama-NIH strainof Japanese encephalitis virus. |