[ON INFLUENZA A 2 VIRUS INFECTIONS IN MARCH 1963].
D001317:Austria; D004813:Epidemiology; D005060:Europe; D006801:Humans; D007251:Influenza, Human
AUSTRIA; EPIDEMIOLOGY; EUROPE; INFLUENZA
UBER INFEKTIONEN MIT DEM INFLUENZA-A2-VIRUS IM MAERZ 1963.