[Epidemiological aspects of influenza caused by A2-Hong Kong-68 virus in Moldaviain the winter and spring of 1969].
D006801:Humans; D007251:Influenza, Human / Q000453:epidemiology*; D012383:Romania; D012621:Seasons
Aspectele epidemiologice ale gripei cu virus A2-Hong Kong-68 ín Moldova ín iarna şi primăvara 1969.