[The epidemic of respiratory tract diseases in the winter of 1961-1962].
D001991:Bronchitis; D002648:Child; D006801:Humans; D007251:Influenza, Human; D010372:Pediatrics; D011014:Pneumonia; D012140:Respiratory Tract Diseases; D014777:Virus Diseases
BRONCHITIS; INFLUENZA; PEDIATRICS; PNEUMONIA; RESPIRATORY DISEASES; VIRUS DISEASES