[Relationship between diseases of the upper and of the lower parts of the respiratory tract in city transport workers].
D006801:Humans; D012137:Respiratory System; D012140:Respiratory Tract Diseases; D015657:Respiratory Transport
RESPIRATORY TRACT/diseases
Vzájemný vztah onemocnĕni hornich a dolních cest dychacich u zamĕstnanců poulicních drah.