[Influenza--1988].
Rudnicka
H
H
D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D002648:Child; D006801:Humans; D007251:Influenza, Human / Q000453:epidemiology* / Q000401:mortality; D008875:Middle Aged; D011044:Poland / Q000453:epidemiology; D012424:Rural Population; D014505:Urban Population
Grypa--1988 rok.