title: [Influenza complications during the 1971-1972 epidemic].
mesh_terms: D000328:Adult; D000368:Aged; D001145:Arrhythmias, Cardiac / Q000209:etiology; D001996:Bronchopneumonia / Q000209:etiology; D004196:Disease Outbreaks; D005260:Female; D006801:Humans; D007251:Influenza, Human / Q000150:complications*; D008297:Male; D008875:Middle Aged; D011044:Poland
vernacular_title: Powikłania epidemii grypy 1971-1972.