[The 1970-71 and 1971-72 influenza seasons].
D005060:Europe; D005061:Europe, Eastern; D006801:Humans; D007251:Influenza, Human / Q000453:epidemiology* / Q000382:microbiology; D009975:Orthomyxoviridae / Q000302:isolation & purification
1970-71 ve 1971-72 influenza mevsimleri.