[Influenza in Poland in the years 1967-1969].
D000367:Age Factors; D000906:Antibodies / Q000032:analysis; D000917:Antibody Formation; D006801:Humans; D007251:Influenza, Human / Q000453:epidemiology* / Q000276:immunology; D009975:Orthomyxoviridae / Q000276:immunology; D011044:Poland
D000906:Antibodies
Grypa w Polsce w latach 1967-1969.