title: [The relationship between upper and lower airways from the point of view of the chest physician].
mesh_terms: D000328:Adult; D000368:Aged; D001249:Asthma / Q000209:etiology*; D001424:Bacterial Infections / Q000382:microbiology*; D001991:Bronchitis / Q000382:microbiology; D003080:Cold Temperature / Q000009:adverse effects; D005260:Female; D006193:Haemophilus influenzae / Q000472:pathogenicity; D006801:Humans; D008297:Male; D008875:Middle Aged; D012141:Respiratory Tract Infections / Q000382:microbiology*; D012852:Sinusitis / Q000382:microbiology; D013296:Streptococcus pneumoniae / Q000472:pathogenicity; D013577:Syndrome; D014777:Virus Diseases / Q000382:microbiology*