[VIRAL INFECTIONS OF THE RESPIRATORY TRACT AND THEIR SIGNIFICANCE FOR PUBLIC HEALTH, WITH REFERENCE TO THEIR EFFECT ON THE DISEASE STATUS].
D006801:Humans; D009787:Occupational Medicine; D011634:Public Health; D012137:Respiratory System; D012141:Respiratory Tract Infections; D014777:Virus Diseases
INDUSTRIAL MEDICINE; PUBLIC HEALTH; RESPIRATORY TRACT INFECTIONS; VIRUS DISEASES